Hi everyone!
I have the same issue with mostly bushes, (debug and non-debug), which doesn't want to change with seasons, not just on usable lots, but in the world, too.
I currently have Fall in my game, but the issue is the same with winter as well.
I have all EP, GP, SP installed.
Update 9/3/2020
PC: 1.66.139.1020
I first saw this bug a couple of days ago, before that it was just fine, all bushes were aligned with the current season.
All lots in all worlds are affected by it.
I removed all my CC (only CAS).
I removed the 2 MODs I use: T.O.O.L. Mod, More CAS Columns Mod.
I had the Red Shelf in my game, removed it as well.
I have reset all my user files as described in the factory reset.
I repaired the game via Origin.
I reinstalled the game completely and started a whole new game/save it without any older saves, tray items, CC or Mod.
Nothing helped to fix my game.
I did use the seasons.advance_seasons cheat once, but I don't think this has anything to do with it.
All help and suggestions are much appreciated!
Thank you.
Here are some screenshots:
