Describe the bug
I think I figured it out...I am now guessing it doesn't play well with Angrier World Quests. My other PC, with JUST Angrier World Quests was fine. I had both running on the PC I reported this from, and I had just installed Better World Quests (thought it was on both PCs, it wasn't). Disabling Angrier World Quests, and now I'm not getting the error.

How to reproduce
Hit "M" to launch Map/Also run Angrier World Quests (each is fine on its own)

What did you expect?
Opening map not to throw an error once per second.

Bugsack

188x ...rd_SharedMapDataProviders/WorldQuestDataProvider.lua:330: attempt to index local 'tagInfo' (a nil value) [string "@Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua"]:330: in function AddWorldQuest'
[string "@BetterWorldQuests/PinProvider.lua"]:161: in function RefreshAllData' [string "@Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua"]:134: in function ClearFocusedQuestID'
[string "@Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua"]:80: in function <...rd_SharedMapDataProviders/WorldQuestDataProvider.lua:79>
[string "=[C]"]: ?
[string "@SharedXML/CallbackRegistry.lua"]:178: in function <SharedXML/CallbackRegistry.lua:177>
[string "=[C]"]: ?
[string "@SharedXML/CallbackRegistry.lua"]:181: in function TriggerEvent' [string "@Blizzard_WorldMap/Blizzard_WorldMap.lua"]:427: in function <...rfaceBlizzard_WorldMap/Blizzard_WorldMap.lua:426> [string "=[C]"]: in function ClearFocusedQuestID'
[string "@FrameXML/QuestMapFrame.lua"]:695: in function <FrameXML/QuestMapFrame.lua:691>
[string "=[C]"]: ?
[string "=[C]"]: in function QuestMapFrame_CloseQuestDetails' [string "@FrameXML/QuestMapFrame.lua"]:712: in function QuestMapFrame_UpdateSuperTrackedQuest'
[string "@FrameXML/QuestMapFrame.lua"]:238: in function <FrameXML/QuestMapFrame.lua:212>

Locals:
self =

{
GetBountyInfo = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:156
OnClearFocusedQuestID = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:79
EvaluateCheckBounties = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:63
OnMapInsetMouseLeave = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:46
AddWorldQuest = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:319
OnSuperTrackingChanged = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:266
SetMatchWorldMapFilters = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:3
OnCanvasScaleChanged = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:50
registeredEvents = {
}
PingQuestID = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:160
owningMap = WorldMapFrame {
}
ShouldSupertrackHighlightInfo = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:285
activePins = {
}
ShouldOverrideShowQuest = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:207
ShouldShowQuest = defined @AngrierWorldQuests/QuestFrame.lua:1095
IsUsingSpellEffect = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:23
OnCanvasSizeChanged = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:58
GetMapQuests = defined @BetterWorldQuests/PinProvider.lua:78
markActiveQuests = true
checkBounties = true
usesSpellEffect = true
IsMarkingActiveQuests = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:94
OnRemoved = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:117
OnAdded = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:98
OnMapChanged = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:74
matchWorldMapFilters = true
GetMap = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:70
ClearFocusedQuestID = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:132
SignalEvent = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:97
GetPinTemplate = defined @BetterWorldQuests/PinProvider.lua:59
OnShow = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:188
OnSetFocusedQuestID = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:75
HandleMouseAction = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:103
spellEffectPin = CinematicModel {
}
suppressedQuests = {
}
OnMapInsetSizeChanged = defined @Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua:38
IsCheckingBounties = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:59
HandleClick = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:46
SetCheckBounties = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:50
SetUsesSpellEffect = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:15
DoesWorldQuestInfoPassFilters = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:202
OnPingQuestID = defined @Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua:83
OnE`