Bug - Party members suddenly becoming an enemy when entering combat

[CM_Biaxial]

The problem started with Sovereign Glut, where sometimes when the character he was linked with in the party got downed or when I entered a fight with him following me he would suddenly leave the party and keep wandering around not interfering. He would also leave the party every time I entered the camp which was very annoying but I don't know if this was a bug or not.

So the real big problems started to happen when (SPOILERS AHEAD) I started a fight with the Duergar and he suddenly left the party but started acting as a friendly NPC helping with the combat and weirdly resurrecting a second undead with the first not disappearing. When the fight was over and I had to choose between joining him in killing the other sovereign or not, I chose the latter and the combat began. Weirdly enough, the second resurrected undead was on my side and the first didn't even enter the fight. When his own undead killed him, ending the fight, it didn't disappear, and when I hit it, another combat began. In the fight, all of a sudden, Lae'zel opportunity attacked Astarion, who was walking past her, and when I killed the undead, the combat did not end and both of them were marked as blue/allies but one was seeing the other as an enemy not being able to flee because they were too close to each other.

After I got both of them far enough and sent them to camp, everything seemed to have returned to normal until I left camp and saw the first undead, which didn't enter the combat with Glut, just standing there, so I tried attacking it, and to my surprise MY CHARACTER was marked as an enemy after it's turn and opportunity attacked Astarion.

With everything bugged, I just deleted my recent saves in the hopes that it would just fix itself if that bugged fight didn't happen, which worked, and here I am sharing this hoping that this could get somehow fixed in the next patch and wondering if someone went through something similar.

It would also be nice if they fixed the bug of the party members sometimes still not following the player's character and the Hook Horror's undead pathways not being the same as the party members, getting stuck or not being able to walk in some places, having to jump to get to where you want.