Uploading ride data from garmin connect

Hi Everyone!

Im a newbie to intervals.icu and i find this application very helpful.

as the subject states… im manually uploading my ride data from zwift (its basically zwift to garmin connect then to intervals.icu) im ok this way for the time being but i just realized something: garmin connect has two data options for you to upload - the GPX and TCX file. currently im uploading both to my activity diary and i notice that the “LOAD” has become double although i did only one training ride for that day. am i doing something wrong here? if the culprit are the two uploaded files, which one is best to upload then?
appreciate your inputs on this. thank you very much!

You should use FIT file. That is the most complete ride data.