I didn't use Fishing Team for a long time. For the whole Spring I used Harvest Team (and in Winter it was Animal Care or Healing).
Hmm, 25th there was nothing to do. I just took care of the animals. Then I harvested and made+planted Lv8 turnip seeds in Super Field, and watered all the fields and 2 basements (using Fatigue Hot Springs where needed). The Team was on their 2nd or 3rd day of 7-day work. Gotz was supposed to demolish a grass-made bird shed but he isn't physically on the farm (which is normal for demolishing, I think. It's 26th now and he's come to say he demolished it). Then I went around pulling up weed and stray branches/stones and slept at 10+pm. I hope my game doesn't corrupt too.
I'm not sure if it's good! I'd try to reset and avoid it if I haven't accidentally saved over both save files. I suppose I should work towards the 900m G villa-land so I feel I still have something to work towards.
I made up a theory about it here