WowAce

EBB causes all built-in action bars to become unusable after 2 pet battles (+ loading screen).

I get the following LUA error:
4x [ADDON_ACTION_FORBIDDEN] AddOn 'ElkBuffBars' tried to call the protected function 'UseAction()'.
[string "@!BugGrabber/BugGrabber.lua"]:480: in function <!BugGrabber/BugGrabber.lua:480>
[string "=[C]"]: in function `UseAction'
[string "@FrameXML/SecureTemplates.lua"]:364: in function `handler'
[string "@FrameXML/SecureTemplates.lua"]:690: in function <FrameXML/SecureTemplates.lua:672>
[string "@FrameXML/SecureTemplates.lua"]:704: in function <FrameXML/SecureTemplates.lua:697>
[string "@FrameXML/SecureTemplates.lua"]:746: in function `SecureActionButton_OnClick'
[string "@FrameXML/ActionButton.lua"]:89: in function `TryUseActionButton'
[string "@FrameXML/ActionButton.lua"]:124: in function `ActionButtonDown'
[string "ACTIONBUTTON8"]:2: in function <[string "ACTIONBUTTON8"]:1>

And the usual message that EBB has been blocked and Disable/Ignore buttons.

100% reproducible the following way:

1. Enter and exit pet battle (no need to do anything, instant forfeit will do)

2. Enter a portal to trigger a loading screen

3. Enter and exit pet battle

4. Enter a portal

5. Observe LUA error and blocked action buttons

Note 1: Very fast place to reproduce is in Orgrimmar at the portal circle, plenty of wild pets around and two-way portal to Tol Barad. Takes ~20s to trigger the issue.

Note 2: Won't trigger with 2 battles + 1 portal.

Note 3: Tested with only EBB and BugGrabber+BugSack enabled.

Note 4: Taint log (level 2) is totally empty.

Got another one:

38x [ADDON_ACTION_BLOCKED] AddOn 'ElkBuffBars' tried to call the protected function 'MultiBarBottomLeft:SetPointBase()'.
[string "@!BugGrabber/BugGrabber.lua"]:480: in function <!BugGrabber/BugGrabber.lua:480>
[string "=[C]"]: in function `SetPointBase'
[string "@FrameXML/EditModeSystemTemplates.lua"]:126: in function `SetPoint'
[string "@FrameXML/EditModeManager.lua"]:638: in function `UpdateBottomActionBarPositions'
[string "@FrameXML/EditModeManager.lua"]:564: in function `UpdateActionBarLayout'
[string "@FrameXML/EditModeSystemTemplates.lua"]:743: in function `UpdateGridLayout'
[string "@FrameXML/ActionButton.lua"]:348: in function `UpdateAction'
[string "@FrameXML/ActionButton.lua"]:801: in function `OnEvent'
[string "@FrameXML/ActionButton.lua"]:196: in function <FrameXML/ActionButton.lua:193>

This might be the predecessor to the first one as I got this after a pet battle but before teleporting and it didn't render the action bars unusable yet.