Talent Panel - CastinbarFrame Issue

[RAtwood90]

Got this while using Default UI to setup Talents for Midnight.
Talent Castbar Stopped working and disappeared. A loading circle was still shown but Talents didn't get changed.
Happend while importing and saving a Talent Build and get stucked.

Message: .../Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua:212: attempted to index a forbidden table
Time: Fri Feb 27 12:37:09 2026
Count: 1
Stack:
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:212: in function 'GetTypeInfo'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:577: in function 'FinishSpell'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:323: in function 'OnEvent'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:737: in function 'UpdateIsShown'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:933: in function 'SetAndUpdateShowCastbar'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/CastingBarFrame.lua]:1320: in function 'EndReplacingPlayerBar'
[Interface/AddOns/Blizzard_PlayerSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua]:945: in function 'SetCommitCastBarActive'
[Interface/AddOns/Blizzard_SharedTalentUI/Blizzard_SharedTalentFrame.lua]:1540: in function 'SetCommitVisualsActive'
[Interface/AddOns/Blizzard_PlayerSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua]:950: in function 'SetCommitVisualsActive'
[Interface/AddOns/Blizzard_SharedTalentUI/Blizzard_SharedTalentFrame.lua]:1609: in function 'SetCommitStarted'
[Interface/AddOns/Blizzard_PlayerSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua]:927: in function 'SetCommitStarted'
[Interface/AddOns/Blizzard_PlayerSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua]:389: in function 'OnTraitConfigUpdated'
[Interface/AddOns/Blizzard_SharedTalentUI/Blizzard_SharedTalentFrame.lua]:345: in function 'OnEvent'
[Interface/AddOns/Blizzard_PlayerSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua]:364: in function <...erSpells/ClassTalents/Blizzard_ClassTalentsFrame.lua:293>

Locals:
self = PlayerCastingBarFrame {
 InterruptSparkAnim = AnimationGroup {
 }
 playCastFX = false
 ChargeFlash = Texture {
 }
 systemInfo = <table> {
 }
 BorderMask = MaskTexture {
 }
 downKeys = <table> {
 }
 CraftingFinish = AnimationGroup {
 }
 InterruptGlowAnim = AnimationGroup {
 }
 BorderShield = Texture {
 }
 StandardGlow = Texture {
 }
 showShield = false
 ChargeGlow = Texture {
 }
 TextBorder = Texture {
 }
 unit = "player"
 isHighlightedCastTarget = false
 isHighlightedImportantCast = false
 spellID = 384255
 InterruptGlow = Texture {
 }
 castID = "Cast-3-1467-2552-89173-384255-0001A181DE"
 maxValue = 5
 value = 0
 FlashAnim = AnimationGroup {
 }
 FadeOutAnim = AnimationGroup {
 }
 StageFinish = AnimationGroup {
 }
 barType = <no value>
 showCastTimeSetting = false
 Flash = Texture {
 }
 WispGlow = Texture {
 }
 dirtySettings = <table> {
 }
 isManagedFrame = true
 hasActiveChanges = false
 snappedToFrame = PlayerFrame {
 }
 Sparkles01 = Texture {
 }
 look = "UNITFRAME"
 attachedToPlayerFrame = true
 CraftingMask = MaskTexture {
 }
 ignoreFramePositionManager = true
 isBottomManagedFrame = true
 settingMap = <table> {
 }
 savedSystemInfo = <table> {
 }
 settingDisplayInfoMap = <table> {
 }
 StageTiers = <table> {
 }
 settingsDialogAnchor = <table> {
 }
 bottomPadding = 8
 snappedFrames = <table> {
 }
 ignoreInLayoutWhenActionBarIsOverriden = false
 NumStages = 0
 casting = true
 showIcon = true
 CastTimeText = FontString {
 }
 showCastbar = true
 Border = Texture {
 }
 showTradeSkills = true
 Flakes03 = Texture {
 }
 EnergyMask = MaskTexture {
 }
 Background = Texture {
 }
 Flakes02 = Texture {
 }
 WispMask = MaskTexture {
 }
 layoutParent = UIParentBottomManagedFrameContainer {
 }
 lockedToPlayerFrame = true
 Selection = Frame {
 }
 InterruptShakeAnim = AnimationGroup {
 }
 FlashLoopingAnim = AnimationGroup {
 }
 StageFlash = AnimationGroup {
 }
 HoldFadeOutAnim = AnimationGroup {
 }
 StagePoints = <table> {
 }
 BaseGlow = Texture {
 }
 StagePips = <table> {
 }
 Icon = Texture {
 }
 systemNameString = "Cast Bar"
 CraftGlow = Texture {
 }
 Sparkles02 = Texture {
 }
 ChannelShadow = Texture {
 }
 Shine = Texture {
 }
 DropShadow = Texture {
 }
 hideWhenActionBarIsOverri