Originally Posted by Shabutie
This usually happens when I play for a few hours in the dungeon or something

Did you try making a new named save, exiting and restarting?

What are you system specs, especially the GPU?


Originally Posted by TheMasterRat
Everyone is stuck in combat doing nothing ( When the last character of a Round uses all his action points, the round won't end and everyone looks at each other's beautiful gear forever).

Please email supportdos2@larian.com, with a save at that point, and one before starting the fight (or a Dropbox or Google drive link, etc).
Each save is a folder in the '..\Documents\Larian Studios\Divinity Original Sin 2\PlayerProfiles\<ProfileName>\Savegames' folder. In Windows Explorer you can zip file(s) and folder(s) by right clicking on it/them and selecting 'Send To | Compressed (zipper) Folder'.