As title says. I see people talking about it, but don’t know exactly what it is. Not sure how to check if I’ve been affected.

Discussed at length here:

 

https://www.reddit.com/r/projecteternity/comments/8i7n6z/pillars_of_eternity_ii_bugs_megathread/dypl5gf/

 

Basically, the game is currently unable to read the choices you made from your imported save or generated history, so everyone is getting the same outcomes no matter what endings they received.

 

Except for people who, by chance, got that exact configuration of endings in Pillars 1, everyone is affected.

It should be fixed with today's patch, but even people that don't think they are affected are affected in various ways, there are tons of flag problems.