yeah, it at times seems wierd. Heres my non 100% thing. It seems like standing up from prone does cost movement. (why half is another arguement) Yet if you are revived or helped up it seems to take your entire action. The just prone though has an animation and you have to wait for it to end, and at times switch to a companion through lower left portraits in order for it to recognize the animation as complete. This to me seems to happen more often then not. Yet at times it seems to work were prone takes all of your action, not always but sometimes.
So maybe it's a bug, and prone is working right, with the revive/help being all of 2 characters action...
