Explicit Transitions: Using Keys sometimes scrolls through as if key is held down (video)

I've got a few buttons set up, and the automatic transitions weren't proper so I set them to explicit. The ships on the top row should be selected with left/right. However, every once in a while the transitions start playing automatically as if I'm holding down the key. This will stop when I press the opposite key down.

Any idea what's going on?

Thanks!!

http://sfbaystudios.com/screenflow_buttons.mp4 (Sorry I can't embed the video!)

 

i had a similar issue. i'd turn the cursor off so it's input may not affect anything else. what do you make of this button issue :
http://forum.unity3d.com/threads/he...buttons-on-different-setactive-panels.266933/

Your menu look great so maybe you can help