Garmin Connect is not detecting personal records correctly, and is associating them with the wrong workouts

This past Thursday I set a new barbell back squat record. After the workout my watch displayed the expected new personal record notification. However, when I synced my watch with Garmin Connect, it did not detect the new personal record. Then, the following day I did another workout that did not include barbell back squat, but when I synced with Garmin Connect the app then said that I had set a new barbell back squat personal record. So now my records show that I apparently achieved a barbell backsquat PR during a workout in which I did no barbell back squats.

I've tried clearing records on both my app and my watch but this still happens. What can I do?