In arena, the cooldowns on abilities sometimes no longer show. BugSack shows this error:

1x [ADDON_ACTION_BLOCKED] AddOn 'BigDebuffs' tried to call the protected function 'CompactPartyFrameMember2:Show()'.
[string "@!BugGrabber/BugGrabber.lua"]:480: in function <!BugGrabber/BugGrabber.lua:480>
[string "=[C]"]: in function Show' [string "@FrameXML/CompactUnitFrame.lua"]:394: in function CompactUnitFrame_UpdateVisible'
[string "@FrameXML/CompactUnitFrame.lua"]:319: in function <FrameXML/CompactUnitFrame.lua:317>
[string "=[C]"]: in function `CompactUnitFrame_UpdateAll'
[string "@FrameXML/CompactUnitFrame.lua"]:116: in function <FrameXML/CompactUnitFrame.lua:47>

and

1x [ADDON_ACTION_BLOCKED] AddOn 'BigDebuffs' tried to call the protected function 'CompactPartyFrameMember3:Show()'.
[string "@!BugGrabber/BugGrabber.lua"]:480: in function <!BugGrabber/BugGrabber.lua:480>
[string "=[C]"]: in function Show' [string "@FrameXML/CompactUnitFrame.lua"]:394: in function CompactUnitFrame_UpdateVisible'
[string "@FrameXML/CompactUnitFrame.lua"]:319: in function <FrameXML/CompactUnitFrame.lua:317>
[string "=[C]"]: in function `CompactUnitFrame_UpdateAll'
[string "@FrameXML/CompactUnitFrame.lua"]:116: in function <FrameXML/CompactUnitFrame.lua:47>