When I am preparing my GM session (a saved game which we have been playng for two months) the abilities often disappear on the NPCs after a while.
Then I suddenly only see a number at each ability category showing how many points the NPC have in that category - but I can no longer see the actual abilities (like Retribution or Aerothurge etc).
I have a similar issue. Sometimes, after posessing a NPC, I lose all customisation options and just get blank "pages". Only relaoding the save fixes it. No mods except 2 "scene add-ons".
Okay, this is getting more than silly. I couldn't get through one NPC without having to restart my campaign 3 freaking times to get the appearance then inventory generation tool to work.