I am not sure what happened here.
I could enter and exit turn based combat with "Enter" regardless of enemies being near, but after entering the Temple of Baa and reaching the upper floor, I cannot exit turn based anymore.
I wait until is my turn, press enter, and I exit and get back to turn based immediately.
I tried outside without enemies and I cannot enter at all. This happens on previous saves as well as a new party
Has anyone encountered such problem before?
Thanks in advance.

this might be "have you tried turning it on and off" type of shit but your other enter key might be stuck? try rebinding the key for turn based combat

That worked! Thanks