Fitness app stopped registering workouts

My watch (series 4 with watchOS 8.7) stopped registering workouts in April. I have everything before then, then nothing. All the settings are correct on both watch and phone, both are up to date, have been reset, unpaired and re-paired, and nothing has worked.

I can still start and stop a workout on my watch, but it vanishes as soon as I end it, and isn’t recorded on the app. The health app is still tracking steps, heart rate, active and resting energy, everything it should, the problem is really only with the Workout + fitness. Thoughts?

Thank you!