Exceptions happens when uploading gpx file exported from ZEPP

I exported the GPX file from the ZEPP app and tried to import it at the calendar page.
Once the progress of the upload bar is completed I get an error that says " * java.lang.NullPointerException"
Tried to export another activity and got the same error.
Strava accepted both files. So it’s not a broken xml.
Can send the file to the email if needed.
2023-03-12T20:20:00Z

not really helpful, but: just because it uploads in Strava does very much not mean that the file is valid. I bet Strava does a bunch of “error correcting” on uploads.

Well, GPS Visualizer: Draw a map from a GPS data file and https://gpx.studio/ are able to open and visualize the same file as well. If you have any other ideas on how to validate generated output - I can check it there as well.
Plus according to the error message I got, it looks like it’s an unhandled exception and some null value validation should be added to the code.

Please mail that file to david@intervals.icu. Tx.