Exercise Ring not closing
My watch has not been accurately counting my exercise minutes. Today I walked on the treadmill for 38 minutes before I could get it to count 30. I am wearing it tight. I am exercising at a decent pace. I already talked to Apple customer support yesterday and I did all the resetting I could do to fix this. I reset the calibration, unpaired and repaired. What other steps are there to do? It always worked before but the last few weeks it's been shorting me minutes. Both my iphone and watch are updated. I've talked to people in apple phone support AND watch support. Neither worked. This is getting pretty annoying especially because I am not getting achievements because it's not accurately counting how long I exercised for, luckily the workout is still showing up on the Activity App but still doesn't close my exercise ring.
I have the Apple Series 4 Watch (Cellular).
Apple Watch Series 4, watchOS 5