On Sunday I had a major bike ride of 67mi. When I got home and ended the activity, I noticed it was not syncing to the Garmin app on my iPhone X. It kept trying over and over again, but about 50% through sync it would just stop and nothing more would happen. I connected to Mac and Garmin Express and it sync'd immediately. Later that evening I noticed my watch froze and had to do a hard reset. Then this morning the alarm was 8 minutes late and was using audio (I never had that enabled for alarms).
As of this morning, the watch keeps trying to sync with app and keeps failing. It seems like that large activity has wedged it as no new activities (like my morning commute) are showing up now, but latest steps and stuff like that are present. Any ideas what's going on here? Running firmware 8.0 here.