Swapping xenonauts in Armory view leads sometimes to visually stack the green circles.
I reproduced it a couple of times, did also inventory reassignment (just as info).
If two are visually stacked, rearranging the slots further leads to weird behavoir swapping other xenonauts not intendet.
Looks like a an index missconfiguration in some for loop or something. Was also happening in V4.0
offtopic: are you developing with unity and c# or java?
Keep up the good work! : )