WowAce

Full log:

Message: ...ard_ObjectiveTracker\Blizzard_QuestSuperTracking.lua:42: attempt to index upvalue 'SuperTrackEventFrame' (a nil value)
Time: Sun Nov 15 13:39:14 2020
Count: 1
Stack: ...ard_ObjectiveTracker\Blizzard_QuestSuperTracking.lua:42: attempt to index upvalue 'SuperTrackEventFrame' (a nil value)
[string "=[C]"]: ?
[string "@Interface\AddOns\Blizzard_ObjectiveTracker\Blizzard_QuestSuperTracking.lua"]:42: in function `QuestSuperTracking_ShouldHighlightDungeons'
[string "@Interface\AddOns\Blizzard_SharedMapDataProviders\DungeonEntranceDataProvider.lua"]:53: in function `UpdateSupertrackedHighlight'
[string "@Interface\AddOns\Blizzard_SharedMapDataProviders\DungeonEntranceDataProvider.lua"]:34: in function `RefreshAllData'
[string "@Interface\AddOns\Blizzard_MapCanvas\MapCanvas_DataProviderBase.lua"]:76: in function `OnMapChanged'
[string "@Interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua"]:559: in function `OnMapChanged'
[string "@Interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua"]:59: in function `SetMapID'
[string "@Interface\AddOns\Blizzard_BattlefieldMap\Blizzard_BattlefieldMap.lua"]:196: in function <...\Blizzard_BattlefieldMap\Blizzard_BattlefieldMap.lua:172>

Locals:

(sometimes the trace includes other lines but only SUF enabled reproduces it)