I was in the sniper sitting stance and wanted to switch to my binoculars and when i did my stance changed to prone (I think this is because of the fact that you can only change stance with a weapon (which is probably something else that would be best to fix))
- Legacy ID
play as a unit with a weapon and binoculars
go into the sniper sitting stance
press "B" to use the binoculars
observe how you go into prone and then change items.
this can be really annoying causing you constantly change stances after looking through binoculars.