# Bug Reports **URL:** https://forum.intervals.icu/c/bug-reports/6.md [Latest](https://forum.intervals.icu/latest.md) · [Categories](https://forum.intervals.icu/categories.md) --- ## [About the Bug Reports category](https://forum.intervals.icu/t/about-the-bug-reports-category/36)
**Author:** [@david](https://forum.intervals.icu/u/david)\ **Replies:** 4\ **Last updated:** [21 January 2026 12:38 UTC](https://forum.intervals.icu/t/about-the-bug-reports-category/36 "2026-01-21T12:38:54Z")
Found something broken? Please help us fix it faster by including: Steps to reproduce – what did you do before the bug appeared? Device & browser – OS, device type, and browser (or app version) Screenshots or screen re… --- ## [Can't Use Custom Fields on Fitness Plots as a Coach](https://forum.intervals.icu/t/cant-use-custom-fields-on-fitness-plots-as-a-coach/133536)
**Author:** [@Jason\_Kotenko](https://forum.intervals.icu/u/Jason_Kotenko)\ **Replies:** 2\ **Last updated:** [9 November 2026 13:16 UTC](https://forum.intervals.icu/t/cant-use-custom-fields-on-fitness-plots-as-a-coach/133536 "2026-11-09T13:16:21Z")
Hello, I am able to set a custom field for one of my athletes (GAP/HR), re-analyze all her workouts, see the field on the activity view and add it as a column on the activity list view and see it there, but I can’t add … --- ## [Garmin connect isn't connecting](https://forum.intervals.icu/t/garmin-connect-isnt-connecting/133512)
**Author:** [@Felix\_Perras](https://forum.intervals.icu/u/Felix_Perras)\ **Replies:** 4\ **Last updated:** [9 November 2026 06:20 UTC](https://forum.intervals.icu/t/garmin-connect-isnt-connecting/133512 "2026-11-09T06:20:14Z")
My Garmin connect is linked to interval icu but my activities never show up in the calendar. When I try and link it, it says error 500 Garmin token exchange failed. I tried connecting via a private browser, the app and a… --- ## [Duplicate Intervals.icu Activities Referencing Same Strava-linked Activity](https://forum.intervals.icu/t/duplicate-intervals-icu-activities-referencing-same-strava-linked-activity/130328)
**Author:** [@grajkovic](https://forum.intervals.icu/u/grajkovic)\ **Replies:** 10\ **Last updated:** [8 November 2026 22:05 UTC](https://forum.intervals.icu/t/duplicate-intervals-icu-activities-referencing-same-strava-linked-activity/130328 "2026-11-08T22:05:26Z")
This morning, I did a Zwift Activity (Group Ride) that Zwift sync’s in the following fashion: Zwift → Intervals.icu Zwift → Strava Intervals.icu manifested TWO activity references for the Zwift Activity. First, the Z… --- ## [BC (Canada/Pacific) times 1 hour off since Nov 1, needs tzdata 2026b](https://forum.intervals.icu/t/bc-canada-pacific-times-1-hour-off-since-nov-1-needs-tzdata-2026b/133485)
**Author:** [@RunTK.com](https://forum.intervals.icu/u/RunTK.com)\ **Replies:** 3\ **Last updated:** [8 November 2026 18:28 UTC](https://forum.intervals.icu/t/bc-canada-pacific-times-1-hour-off-since-nov-1-needs-tzdata-2026b/133485 "2026-11-08T18:28:28Z")
Hi all, BC moved to permanent UTC-7 this year (IANA tzdata 2026b), but Intervals.icu still treats Canada/Pacific as UTC-8 from Nov 1. A workout at 18:00 local exports in the iCal feed as 02:00 UTC instead of 01:00 UTC, … --- ## [Can't re-order custom charts on fitness page](https://forum.intervals.icu/t/cant-re-order-custom-charts-on-fitness-page/77584)
**Author:** [@Zach\_Weinberger](https://forum.intervals.icu/u/Zach_Weinberger)\ **Replies:** 3\ **Last updated:** [8 November 2026 17:00 UTC](https://forum.intervals.icu/t/cant-re-order-custom-charts-on-fitness-page/77584 "2026-11-08T17:00:37Z")
As of today, I’m unable to change the order of the charts on the fitness page. They do change order in the list of custom charts, but not the actual charts. I have tried in Safari & Chrome, as well as removing stored we… --- ## [Planned races (or workouts) to be visible in the calendar? : closed](https://forum.intervals.icu/t/planned-races-or-workouts-to-be-visible-in-the-calendar-closed/691)
**Author:** [@Philippe\_Thibeaut](https://forum.intervals.icu/u/Philippe_Thibeaut)\ **Replies:** 3\ **Last updated:** [8 November 2026 13:07 UTC](https://forum.intervals.icu/t/planned-races-or-workouts-to-be-visible-in-the-calendar-closed/691 "2026-11-08T13:07:40Z")
Hello, Bravo for your great application! I can’t find a way for the planned races (or workouts) to be visible in the calendar. thank you in advance Philippe --- ## [Cannot select "Sub Type" "Race" for Workouts](https://forum.intervals.icu/t/cannot-select-sub-type-race-for-workouts/124690)
**Author:** [@Luca\_Maier](https://forum.intervals.icu/u/Luca_Maier)\ **Replies:** 1\ **Last updated:** [8 November 2026 13:06 UTC](https://forum.intervals.icu/t/cannot-select-sub-type-race-for-workouts/124690 "2026-11-08T13:06:34Z")
When trying to select “Race” as the “Sub Type” for a workout (tested for Running and Cycling) the following error message appears: “sub\_type RACE not allowed (use category RACE\_A, RACE\_B or RACE\_C instead)” However, no… --- ## [Unrealistic elevation gain after FIT import due to initial altitude spikes](https://forum.intervals.icu/t/unrealistic-elevation-gain-after-fit-import-due-to-initial-altitude-spikes/133510)
**Author:** [@Frasodel](https://forum.intervals.icu/u/Frasodel)\ **Replies:** 1\ **Last updated:** [7 November 2026 16:35 UTC](https://forum.intervals.icu/t/unrealistic-elevation-gain-after-fit-import-due-to-initial-altitude-spikes/133510 "2026-11-07T16:35:55Z")
Hi, When I upload 1794041449-GIR.fit to Intervals.icu, it shows approximately 500 m of elevation gain for a run of just 1.23 km lasting 7 minutes 13 seconds. An analysis of the FIT file identified abnormal altitude rea… --- ## [Cosmetic issue viewing completed workout intervals](https://forum.intervals.icu/t/cosmetic-issue-viewing-completed-workout-intervals/133503)
**Author:** [@mordav](https://forum.intervals.icu/u/mordav)\ **Replies:** 2\ **Last updated:** [7 November 2026 13:20 UTC](https://forum.intervals.icu/t/cosmetic-issue-viewing-completed-workout-intervals/133503 "2026-11-07T13:20:30Z")
Create a workout in the workout builder that includes a rest interval, e.g. \`\`\` Main Set 2x 6m Z2 (45-60w) 2m 0% (0w) \`\`\` Complete the workout and view the activity. Hover over the planned workout panel. The r… --- ## [Unable to zoom out on activities with double left click anymore?](https://forum.intervals.icu/t/unable-to-zoom-out-on-activities-with-double-left-click-anymore/133496)
**Author:** [@powerwalking\_andy](https://forum.intervals.icu/u/powerwalking_andy)\ **Replies:** 2\ **Last updated:** [6 November 2026 21:43 UTC](https://forum.intervals.icu/t/unable-to-zoom-out-on-activities-with-double-left-click-anymore/133496 "2026-11-06T21:43:12Z")
I’m pretty sure I used to always zoom out with double click, now it seems like regardless it always zooms you in, even if it’s a single left click without dragging over a specific timeframe. I see it changes the url too … --- ## [Pool swim interval times ~1 s longer than FIT lap times (Garmin FR265S)](https://forum.intervals.icu/t/pool-swim-interval-times-1-s-longer-than-fit-lap-times-garmin-fr265s/133489)
**Author:** [@mredon](https://forum.intervals.icu/u/mredon)\ **Replies:** 0\ **Last updated:** [6 November 2026 13:14 UTC](https://forum.intervals.icu/t/pool-swim-interval-times-1-s-longer-than-fit-lap-times-garmin-fr265s/133489 "2026-11-06T13:14:58Z")
Hi, My pool swim intervals come out ~1 s longer per rep than the lap times in the original FIT file. I have a Garmin Forerunner 265S (fw 29.05), 25 m pool, manual laps (lap button at the start and end of each rep), sync… --- ## [PROBLEMA INTERVALS-GARMIN CONNECT](https://forum.intervals.icu/t/problema-intervals-garmin-connect/133475)
**Author:** [@Andrea\_Beltramini](https://forum.intervals.icu/u/Andrea_Beltramini)\ **Replies:** 9\ **Last updated:** [6 November 2026 11:45 UTC](https://forum.intervals.icu/t/problema-intervals-garmin-connect/133475 "2026-11-06T11:45:27Z")
Buonasera ho un problema con intervals, ho cambiato lo smartphone e non mi sincronizza piu gli allenamenti di intervals su garmin connect e quindi sul edge 1050. Ho provato a collegare/scollegare/ricollegare mille volte… --- ## [Amazfit wellness sync issue](https://forum.intervals.icu/t/amazfit-wellness-sync-issue/133470)
**Author:** [@Footy84](https://forum.intervals.icu/u/Footy84)\ **Replies:** 4\ **Last updated:** [6 November 2026 07:22 UTC](https://forum.intervals.icu/t/amazfit-wellness-sync-issue/133470 "2026-11-06T07:22:40Z")
Hi, I’m experiencing an issue with the Amazfit/Zepp wellness sync. Everything was syncing correctly until October 31, 2026. Since November 1, 2026, only sleep-related data is being imported into Intervals.icu. The fol… --- ## [Not sure if this is a bug or not](https://forum.intervals.icu/t/not-sure-if-this-is-a-bug-or-not/133486)
**Author:** [@Dave\_Casey](https://forum.intervals.icu/u/Dave_Casey)\ **Replies:** 1\ **Last updated:** [6 November 2026 05:07 UTC](https://forum.intervals.icu/t/not-sure-if-this-is-a-bug-or-not/133486 "2026-11-06T05:07:28Z")
Hello, I’m having a problem syncing sleep data from Samsung Health to Intervals.icu through Health Sync. Sleep data was syncing successfully until October 13, 2026. Since then, no new sleep records have appeared in Int… --- ## [Garmin Connect shows unlinked](https://forum.intervals.icu/t/garmin-connect-shows-unlinked/133472)
**Author:** [@AndyThornley](https://forum.intervals.icu/u/AndyThornley)\ **Replies:** 2\ **Last updated:** [5 November 2026 13:43 UTC](https://forum.intervals.icu/t/garmin-connect-shows-unlinked/133472 "2026-11-05T13:43:22Z")
Hiya, I have tried to link Garmin Connect and used my credentials, but each time I do this, it shows a red link symbol with a line through it and won’t sync data. I’ve tried disconnecting and reconnecting to no avail (i… --- ## [Garmin Connect sync not working – endless loading spinner](https://forum.intervals.icu/t/garmin-connect-sync-not-working-endless-loading-spinner/133431)
**Author:** [@mayo1216massy](https://forum.intervals.icu/u/mayo1216massy)\ **Replies:** 15\ **Last updated:** [5 November 2026 12:52 UTC](https://forum.intervals.icu/t/garmin-connect-sync-not-working-endless-loading-spinner/133431 "2026-11-05T12:52:06Z")
Hello, I’m having trouble syncing Garmin Connect with Intervals.icu. I hadn’t used Intervals.icu for over six months. My old activity data is still there, but new activities and wellness data are no longer syncing. I … --- ## [Duplicate Activity Entires After Importing Strava Data](https://forum.intervals.icu/t/duplicate-activity-entires-after-importing-strava-data/121058)
**Author:** [@Adam\_Murray](https://forum.intervals.icu/u/Adam_Murray)\ **Replies:** 2\ **Last updated:** [5 November 2026 11:23 UTC](https://forum.intervals.icu/t/duplicate-activity-entires-after-importing-strava-data/121058 "2026-11-05T11:23:04Z")
Hi, I became a supporter yesterday and imported my Strava data following the instructions in the “connection” screen in the settings. According to the Strava import instructions, activities that are already imported from… --- ## [Activity won't analyse - internal server error (i205618193)](https://forum.intervals.icu/t/activity-wont-analyse-internal-server-error-i205618193/133467)
**Author:** [@Thomas\_V\_Bundgaard](https://forum.intervals.icu/u/Thomas_V_Bundgaard)\ **Replies:** 1\ **Last updated:** [5 November 2026 07:02 UTC](https://forum.intervals.icu/t/activity-wont-analyse-internal-server-error-i205618193/133467 "2026-11-05T07:02:55Z")
Hi David, One of my athletes’ activities from yesterday was never analysed. FTP, NP, load and IF are all missing, and analysed is still null. Activity: i205618193 (athlete i352397) Device: Wahoo ELEMNT ROAM, Favero po… --- ## [Concept 2 rowing intervals displayed incorrectly](https://forum.intervals.icu/t/concept-2-rowing-intervals-displayed-incorrectly/133436)
**Author:** [@Shaun\_Kelly](https://forum.intervals.icu/u/Shaun_Kelly)\ **Replies:** 1\ **Last updated:** [4 November 2026 20:00 UTC](https://forum.intervals.icu/t/concept-2-rowing-intervals-displayed-incorrectly/133436 "2026-11-04T20:00:03Z")
Hi David, I’m having an issue with Concept2 rowing workouts imported into Intervals.icu. On 3 November, I completed 6 × 500 m with 600 m active recoveries. The Concept2 PM5 and Strava correctly show each work interval … --- ## [Igp sport issue](https://forum.intervals.icu/t/igp-sport-issue/133447)
**Author:** [@Miguepruebatbnv](https://forum.intervals.icu/u/Miguepruebatbnv)\ **Replies:** 4\ **Last updated:** [4 November 2026 15:31 UTC](https://forum.intervals.icu/t/igp-sport-issue/133447 "2026-11-04T15:31:10Z")
Hi, I’m having an issue sending planned workouts from Intervals.icu to iGPSport. Importing activities from iGPSport works fine. Sending planned workouts worked once (it arrived instantly), but now nothing arrives, nei… --- ## [Pool swim workouts on Garmin: rest time added to total distance + last rest in repeat skipped](https://forum.intervals.icu/t/pool-swim-workouts-on-garmin-rest-time-added-to-total-distance-last-rest-in-repeat-skipped/133451)
**Author:** [@Andrej\_Vistica](https://forum.intervals.icu/u/Andrej_Vistica)\ **Replies:** 0\ **Last updated:** [4 November 2026 11:07 UTC](https://forum.intervals.icu/t/pool-swim-workouts-on-garmin-rest-time-added-to-total-distance-last-rest-in-repeat-skipped/133451 "2026-11-04T11:07:34Z")
Hi David, Two issues with structured pool swim workouts synced from Intervals.icu to Garmin Connect (Forerunner 965). The same workouts sent via Final Surge work correctly on the same watch. 1. Rest time is added to th… --- ## [Bibliothek workout import structure fails](https://forum.intervals.icu/t/bibliothek-workout-import-structure-fails/133388)
**Author:** [@ogni65](https://forum.intervals.icu/u/ogni65)\ **Replies:** 4\ **Last updated:** [3 November 2026 13:41 UTC](https://forum.intervals.icu/t/bibliothek-workout-import-structure-fails/133388 "2026-11-03T13:41:54Z")
I have a project, where i create fit files for performance testing. It’s a structured workout which has sections of warmup, max efforts, restperiods and so on… the max efforts sections have a time but not a watt or pace … --- ## [Activity gear not syncing with Strava](https://forum.intervals.icu/t/activity-gear-not-syncing-with-strava/133422)
**Author:** [@nverdera](https://forum.intervals.icu/u/nverdera)\ **Replies:** 0\ **Last updated:** [2 November 2026 22:24 UTC](https://forum.intervals.icu/t/activity-gear-not-syncing-with-strava/133422 "2026-11-02T22:24:35Z")
Hey David, Ran into a sync issue with gear updates coming from Strava. The overall gear totals in Intervals seem to pull from Strava fine: under Settings \> Gear, my ASICS Sonicblast 3 show 261 km, which correctly matche… --- ## [Manual upload not working on PC](https://forum.intervals.icu/t/manual-upload-not-working-on-pc/133358)
**Author:** [@CHRISTOPHER\_JONES](https://forum.intervals.icu/u/CHRISTOPHER_JONES)\ **Replies:** 6\ **Last updated:** [2 November 2026 09:29 UTC](https://forum.intervals.icu/t/manual-upload-not-working-on-pc/133358 "2026-11-02T09:29:37Z")
Hi, manual upload is not working. Steps to reproduce: Select Upload from Calendar view Select in the dialogue Browse to and select the file Dialogue updates to uploading 1 of 1 then nothing… Same on PC and Android mo… --- ## [Outdoor power range doesn’t work](https://forum.intervals.icu/t/outdoor-power-range-doesn-t-work/133247)
**Author:** [@Nehonimo](https://forum.intervals.icu/u/Nehonimo)\ **Replies:** 4\ **Last updated:** [1 November 2026 10:26 UTC](https://forum.intervals.icu/t/outdoor-power-range-doesn-t-work/133247 "2026-11-01T10:26:34Z")
Outdoor power Rande doesn’t work anymore since around a week on Garmin for biking. In the training activity I have set the power range from 132-143w. After syncing to the Garmin device it shows the same values and n… --- ## [API Key acces denied](https://forum.intervals.icu/t/api-key-acces-denied/133362)
**Author:** [@Giuseppe\_Fabbianelli](https://forum.intervals.icu/u/Giuseppe_Fabbianelli)\ **Replies:** 6\ **Last updated:** [31 October 2026 12:10 UTC](https://forum.intervals.icu/t/api-key-acces-denied/133362 "2026-10-31T12:10:15Z")
Title: Coach API key gets 403 “Access denied” on 3 athletes, while permission is WRITE Hi David, I coach about 45 athletes and read their data through the API with my coach API key (Basic auth, username API\_KEY, https… --- ## [Garmin FIT fields not coming in (Possible Garmin is Filtering Data prior to sending to intervals.icu)](https://forum.intervals.icu/t/garmin-fit-fields-not-coming-in-possible-garmin-is-filtering-data-prior-to-sending-to-intervals-icu/124287)
**Author:** [@DarKen](https://forum.intervals.icu/u/DarKen)\ **Replies:** 94\ **Last updated:** [30 October 2026 17:45 UTC](https://forum.intervals.icu/t/garmin-fit-fields-not-coming-in-possible-garmin-is-filtering-data-prior-to-sending-to-intervals-icu/124287 "2026-10-30T17:45:34Z")
Hi, On my activities from this morning Garmin fields (from some custom fields by the community). Performance Condition, Training Effect, VO2max all impacted. Aerobic and Anaerobic effect and Training Load all appear to… --- ## [(Almost-)Constant Power Values from RideCave](https://forum.intervals.icu/t/almost-constant-power-values-from-ridecave/133352)
**Author:** [@ahentz](https://forum.intervals.icu/u/ahentz)\ **Replies:** 0\ **Last updated:** [30 October 2026 17:29 UTC](https://forum.intervals.icu/t/almost-constant-power-values-from-ridecave/133352 "2026-10-30T17:29:04Z")
I noticed that the rowing activities I upload from RideCave have incorrect power values after the first few samples. For example, Intervals.icu . Note that both the FIT file and the Original FIT file have the correct dat… --- ## [Can't make the connection](https://forum.intervals.icu/t/cant-make-the-connection/133350)
**Author:** [@Frank\_Dost](https://forum.intervals.icu/u/Frank_Dost)\ **Replies:** 2\ **Last updated:** [30 October 2026 17:18 UTC](https://forum.intervals.icu/t/cant-make-the-connection/133350 "2026-10-30T17:18:04Z")
See printscreen. When I make the connection and login on Garmin to give it permission, - I then agree to T&C’s and sharing of information back on Intervals and am met with this empty screen that does not move. Any sugges… [Next page](https://forum.intervals.icu/c/bug-reports/6.md?page=1)