Another bug that I'm coming across is that after saving it seems to list my "main" character in the save file as some other party member. Like I was playing Outlander and had a party with Legarde, saving the game listed my protagonist as Legarde for some reason. Later it changed to Girl as well. And now I found Enki and it changed to him.
Gameplay -wise I am still playing as Outlander and controlling him only during exploration, interactions etc. So it doesn't seem to be causing any major problems so far, except for that when I try to teach someone a new skill from the cheats menu, it only lets me teach it to the character who is listed as the protagonist in the save file. So I was trying to learn Phase Step but it would only let me teach it to Enki, which was useless because a party member knowing that spell doesn't let you use it in exploration as far as I can tell.