On multiple occasions, due to the unfriendly UX on garmin 6x watch, I managed to stop the activity (hiking). Now I have two activities.
I tried to export TCX files for both, and use some online tool to merge them, but if I try to IMPORT new activity to Garmin Connect I get an error while importing the file (no details, just please try again).
How is one supposed to merge them?
tnx!
Luka