Since the 4.3 update, my wife and I are both unable to edit activities via Garmin Connect Mobile on our iPhone 8+ phones. She uses an FR935, I have a VA3. Both devices sync timely and properly with GCM. The activities are editable on garmin.com, and the edits made on garmin.com propagate to GCM correctly. But no error of any kind can be made on GCM ("Network Connection Error").