Hi, i'm getting this error.
1x [ADDON_ACTION_BLOCKED] AddOn 'Dominos' tried to call the protected function 'OverrideActionBarButton3:Show()'.
!BugGrabber\BugGrabber.lua:573: in function <!BugGrabber\BugGrabber.lua:573>
[C]: in function Show' FrameXML\ActionButton.lua:364: in function ActionButton_Update'
FrameXML\ActionButton.lua:720: in function `ActionButton_OnEvent'
FrameXML\ActionButton.lua:207: in function <FrameXML\ActionButton.lua:204>

Locals:
InCombatSkipped

I have the same error showing regularly in combat too

1x [ADDON_ACTION_BLOCKED] AddOn 'Dominos' tried to call the protected function 'OverrideActionBarButton1:Show()'.
!BugGrabber\BugGrabber.lua:519: in function <!BugGrabber\BugGrabber.lua:519>
[C]: in function `Show'
FrameXML\ActionButton.lua:364: in function `ActionButton_Update'
FrameXML\ActionButton.lua:720: in function `ActionButton_OnEvent'
FrameXML\ActionButton.lua:207: in function <FrameXML\ActionButton.lua:204>

Locals:
InCombatSkipped

So there's good a chance more of these just start disappearing when 8.1 comes out due to blizzard fixing a few bugs on their end.