Probaly because of mutiplayer and or split screen? Maybe even due to the horribal chain control system they use for consoles...
Actualy theese problems GM4Him had allready covered in his past suggestions that are somewhere in this mess, so maybe you missed those.
Both multiplayer and split screen problems are tied only to amount of PC players ... So IF (and i know its a big if) Larian would allow us 6 members, party with limitation of 4 player max ...
There would be no problem at all.
In the words of the senior NCO instructor at cadet battalion: “If you ain’t cheating you ain’t trying. And if you got caught you didn’t try hard enough!”