I’m working on a single-player 4.11 project with several behavior tree -driven NPC characters. Recently the NPC characters’ movements suddenly started to skip around - it looks pretty much exactly as trying to play an online multiplayer game with really bad server lag. Animation asset based animations run fine, but the position of the characters jumps back and forth when they’re moving on the map. When this issue appeared, it affected all the copies of the project, not just the one I was working on.
I’ve tried re-installing the editor, upgrading to 4.12 and migrating my stuff to a new project, but the issue still persists. I’m planning to try a clean re-install next. Any tips?