I can confirm a similar behaviour.
After clicking manual resolve I warp to the main hall.
After hiring some guards I wondered, why the bandits looked toward the "training center right of the main entrance " (- sorry I have to improvise, because i play in german) and ignored my party. checking with TAB I only got enemies shown. After a bit of reading I recognized that 2 of the "enemies" where my 2 hired guards.
I took care of not hitting my guards. After destroying the _real_ enemies, there came a cutscene after that my guards where friendly and did their jobs. But because of the cutscene, I got no chance to loot the bandits.