Bugsack error:

8x [ADDON_ACTION_BLOCKED] AddOn 'AngryAssignments' tried to call the protected function 'Frame:SetPassThroughButtons()'.
[string "@!BugGrabber/BugGrabber.lua"]:481: in function <!BugGrabber/BugGrabber.lua:481>
[string "=[C]"]: in function SetPassThroughButtons' [string "@SilverDragon_Overlay/pins.lua"]:30: in function OnAcquired'
[string "@Blizzard_MapCanvas/Blizzard_MapCanvas.lua"]:201: in function AcquirePin' [string "@SilverDragon_Overlay/worldmap.lua"]:52: in function RefreshAllData'
[string "@SilverDragon_Overlay/worldmap.lua"]:190: in function UpdateWorldMapIcons' [string "@SilverDragon_Overlay/module.lua"]:201: in function ?'
[string "@AngryAssignments/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:109: in function <...nts/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>
[string "=[C]"]: ?
[string "@AngryAssignments/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...nts/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@AngryAssignments/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@AngryAssignments/libs/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <.../AngryAssignments/libs/AceEvent-3.0/AceEvent-3.0.lua:119>

Locals:
_ = Frame {
RegisterEvent = defined @!BugGrabber/BugGrabber.lua:487
0 =
UnregisterEvent = defined @!BugGrabber/BugGrabber.lua:487
SetScript = defined @!BugGrabber/BugGrabber.lua:487
}
event = "ADDON_ACTION_BLOCKED"
events =

{
ADDON_ACTION_BLOCKED = defined @!BugGrabber/BugGrabber.lua:553
ADDON_ACTION_FORBIDDEN = defined @!BugGrabber/BugGrabber.lua:553
PLAYER_LOGIN = defined @!BugGrabber/BugGrabber.lua:547
LUA_WARNING = defined @!BugGrabber/BugGrabber.lua:562
ADDON_LOADED = defined @!BugGrabber/BugGrabber.lua:507
}

Haven't quite worked out what triggers it yet .. it doesn't turn up straight away, and it doesn't happen when opening the addon.