I know we're not alone, because the more I read, the more I see this happens to quite a few people and I even read in one thread the issue existed back in EA 2021 (yikes!). After posting this, I did read one person say that if they had Shadowheart in their party, this would happen and if they took her out, it would be fine... so after exhausting nearly everything else I thought of trying, I went ahead and dropped Shadowheart from the party and the fight I must've tried 40 times while troubleshooting worked without a single hiccup, so it does seem like there are some unknown variables where it may be specific classes, spells, items or any combination of any of those that triggers this behavior.
The fight I started noticing this behavior on was where a few enemies were invisible from the very start, so there was no way for me to actually finish the battle and move on because I didn't have any spells or items to make an invisible enemy visible, so there was no way for me to target them or do anything (tried burning the ground underneath where the camera would pan to and all that, nothing worked)... so for me, it was a definitive game stopper.
Where did you submit a bug report to Larian @ReeceLavellan? I don't remember seeing anything in game.