Rogue Staging icons

[Gargamel]

This has been persistent over many versions of the game, with different mod loadouts.   While in the VAB, sometimes if I drag a stage group, or items from a group, they don't drop into a new/existing group correctly.  The items are usually placed in the staging sequence, but the icon is placed out of whack on the screen, blocking the view of the staging sequence.  Usually launching the vehicle cleans it up and I can see what stage the items have ended up.  Recently, in 1.3.1, the rogue icons are persisting outside the VAB, into launch, and sometimes back to the KSC screen. 

I don't have any screenshots of it yet, but now that I'm mentioning it, I'll try to get some. 

Also note, that in the last couple weeks, when the icons have gotten worse, my gaming mouse has started to act up, and the debounce on the button is going bad, simulating double or triple clicks where it is only supposed to be a single click.  (causing havoc with KAC in particular, where I end up deleting 3 alarms instead of the one I intended)  This kind of coincides with the persistent icons, but is not exclusive to it.  And yes, I have switched mice.