Hehe it's not really a bug, actually when searching the boots, some branches can lead to loosing health, and so, you can die during the interaction and being sent back to the last save... And as currently it's a bit brutal when you die (black screen and direct reload), the transition is far from optimal. And I also just noticed that you won't even have the text displayed explaining why you lost some health in this case, so yeach I'll fix this.
But I'm not sure to understand the "selecting the search options was making Rook walk around too" part. It happened after the droid fight in the security room? And what do you mean by "walk around"?