I'm still in act 1.

Some things I've experienced:

Select an ability like dash, dash is never activated, I never use it, but resources are gone anyway, and pressing back does nothing. Turn is negated.

Sometimes ranged attacks have required movement for no apparent reason, also negating a turn.

Poison traps in Ethel's house don't seem to explode with fireball, but they're deactivated anyway. The Last one, some poison never dispersed, making it impossible to pass without taking damage.

Save the dude in the burning house, and then it just goes to turn-based mode. I forget about that toggle, and we're fucking going a few feet at a time out of a burning room. After 5 reloads and me screaming at TV, I just let him die.

Those are the big ones, but there's been so many small things, not to mention the terrible communication when things you have deactivate your spells.

Or why sometimes bonus actions are available and sometimes not. I still have no idea.

Or why I can be up on a ledge, bad guy is facing away from me on lower ground, and somehow they still have the advantage. That one seems to be a low character level thing though.