Describe the bug
Commonly in groups this error appears when doing mythic+ runs. I cannot give exact steps to reproduce. I am hoping the error report gives you enough details to find out what is checking a nil value.

To Reproduce
Unknown as to what leads to bug so can't give steps to reproduce.

Expected behavior
Error does not occur.

Screenshots
None to attach.

Version (please complete the following information):

• Version ElvUI [10.82]
• Version Elvui_Enhanced [3.3.3-beta2]

Additional context
None

2x ...lvUI_Enhanced\modules\unitframes\update_elements.lua:44: attempt to index a nil value ...lvUI_Enhanced\modules\unitframes\update_elements.lua:44: in function?'
ElvUI\Libraries\AceTimer-3.0\AceTimer-3.0-17.lua:55: in function <ElvUI\Libraries\AceTimer-3.0\AceTimer-3.0.lua:50>

Locals:
self =

{
Update_AssistHeader = defined @ElvUI\Modules\unitframes\groups\assist.lua:55
modules = {
}
CancelTimer = defined @ElvUI\Libraries\AceTimer-3.0\AceTimer-3.0.lua:147
RaidRoleUpdate = defined @ElvUI\Modules\unitframes\elements\raidroleicons.lua:48
Construct_PowerBar = defined @ElvUI\Modules\unitframes\elements\power.lua:14
arena1 = ElvUF_Arena1 {
}
Construct_Buffs = defined @ElvUI\Modules\unitframes\elements\auras.lua:27
Construct_ArenaFrames = defined @ElvUI\Modules\unitframes\groups\arena.lua:68
Configure_RaidDebuffs = defined @ElvUI\Modules\unitframes\elements\raiddebuffs.lua:33
UpdateHealComm = defined @ElvUI\Modules\unitframes\elements\healprediction.lua:117
ADDON_LOADED = defined @ElvUI\Modules\unitframes\unitframes.lua:1126
FrameGlow_CheckMouseover = defined @ElvUI\Modules\unitframes\elements\frameglow.lua:294
ApplyUnitFrameEnhancements = defined @ElvUI_Enhanced\modules\unitframes\construct_elements.lua:112
db = {
}
Update_TankFrames = defined @ElvUI\Modules\unitframes\groups\tank.lua:86
SetEnabledState = defined @ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:455
Hook = defined @ElvUI\Libraries\AceHook-3.0\AceHook-3.0.lua:274
instanceMapIDs = {
}
Construct_TargetTargetFrame = defined @ElvUI\Modules\unitframes\units\targettarget.lua:12
Raid40SmartVisibility = defined @ElvUI\Modules\unitframes\groups\raid40.lua:65
UpdateFillBar = defined @ElvUI\Modules\unitframes\elements\healprediction.lua:81
FrameGlow_SetGlowColor = defined @ElvUI\Modules\unitframes\elements\frameglow.lua:184
Construct_BossFrames = defined @ElvUI\Modules\unitframes\groups\boss.lua:18
UnregisterAllEvents = defined @SharedMedia\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:200
Construct_RaidDebuffs = defined @ElvUI\Modules\unitframes\elements\raiddebuffs.lua:10
PostUpdate_PhaseIcon = defined @ElvUI\Modules\unitframes\elements\phaseindicator.lua:15
assist = ElvUF_Assist {
}
Update_ArenaFrames = defined @ElvUI\Modules\unitframes\groups\arena.lua:121
Construct_RaidpetFrames = defined @ElvUI\Modules\unitframes\groups\raidPets.lua:19
groupPrototype = {
}
Construct_InfoPanel = defined @ElvUI\Modules\unitframes\elements\infopanel.lua:7
Configure_HealthBar = defined @ElvUI\Modules\unitframes\elements\health.lua:52
GetName = defined @ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:310
classMaxResourceBar = {
}
name = "ElvUI_UnitFrames"
Construct_Range = defined @ElvUI\Modules\unitframes\elements\range.lua:23
Disable = defined @ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:345
Construct_FocusFrame = defined @ElvUI\Modules\unitframes\units\focus.lua:15
FrameGlow_ElementHook = defined @ElvUI\Modules\unitframes\elements\frameglow.lua:31
AuraIconUpdate = defined @ElvUI\Modules\unitframes\elements\auras.lua:362
PostCastStop = defined @ElvUI\Modules\unitframes\elements\castbar.lua:428
Unhook = defined @ElvUI\Libraries\AceHook-3.0\AceHook-3.0.lua:418
ClearChildPoints = defined @ElvUI\Modules\unitframes\unitframes.lua:345
Configure_ReadyCheckIcon = defined @ElvUI\Modules\un
`