Madscientist;
I'll check if the indicators are a known issue. If not, it doesn't sound like it will be hard to reproduce.

Battering Ram checks collision detection, so a level difference a little more than the caster's height is fine.

The missing prone animation is a known issue, particularly for human female models.



drfrogsplat;

When your characters were missing consistently, were they blinded before then? Someone else reported that after being blinded (Blinding Radiance), the chance to hit was shown as going back to normal when it wore off, but the character continued to miss.

Please email supportdos2@larian.com, with a save when you get this performance drop (or a Dropbox or Google drive link, etc), along with a dxdiag report (WinKey-R, type in dxdiag and hit enter, then when it finishes loading click on the 'Save All Information...' button and save the report somewhere handy).
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'.

Do you have a save with, or just before, the second time being arrested? I don't think anything is suppose to be removed as part of the arrest mechanic.