I'm finding that when using the automatic checkbox on UIRoot along with a panel marked static, when the app starts up it doesn't move the sprites over to their correct anchor positions. It's really odd, the colliders etc are moved to the right spot though. so if I click in the seemingly empty area to the side of where the incorrectly placed sprite images appear, it registers a button hit and then updates the sprite after.
My dir structure looks like:
UIRoot <----set to 'Automatic'
-UICamera
-UIPanel (static)
--Buttons