i try to change the activity type from an activity from miscellaneous into Yoga. But the app will not save the changed field. The message is ' there is an error' but that is not really helpful.
I have the same problem: Since yesterday I cannot edit an activity in the App: After editing the activity a message comes up telling "Es ist ein Fehler aufgetreten" (="an error occurred" - I'm using the German version). Looking back I can say that on the 30th January I still was able to edit an activity, I don't know how to find out about the latest App update, now it's "Version 4.2.2". I already restartet my smartphone and emptied the cache - nothing helped since now.
Editing of activities is still possible when using the PC-version of Garmin Connect.