there are now several clothing items (vests, jackets, hats etc.) in the office building which you can clearly see but you can't interact with them (not via crosshair and not via inventory).

Always happend when they were lying on the ground, no matter which floor.
Happend in two different office buildings (one at the train station NW to Lopatino) and always with clothes (however e.g. helmets weren't influenced)