WowAce

What steps will reproduce the problem?
1. Have a raid group
2. Let people join while you are in combat
3. -

What is the expected output? What do you see instead?

What Grid2 version and language of WoW are you using?
r678 enGB

Do you have an error log of what happened?

93x CreateFrame: Can"t create protected "Button" now
<in C code>
<in C code>
Blizzard_CompactRaidFrameContainer.lua:343: in function "CompactRaidFrameContainer_GetUnitFrame"
Blizzard_CompactRaidFrameContainer.lua:315: in function "CompactRaidFrameContainer_AddUnitFrame"
Blizzard_CompactRaidFrameContainer.lua:297: in function "CompactRaidFrameContainer_AddFlaggedUnits"
Blizzard_CompactRaidFrameContainer.lua:170: in function "CompactRaidFrameContainer_LayoutFrames"
Blizzard_CompactRaidFrameContainer.lua:131: in function "CompactRaidFrameContainer_TryUpdate"
Blizzard_CompactRaidFrameContainer.lua:58: in function "CompactRaidFrameContainer_OnEvent"
<string>:"*:OnEvent":1: in function <string>:"*:OnEvent":1

Locals:
(*temporary) = "Button"
(*temporary) = "CompactRaidFrame32"
(*temporary) = CompactRaidFrameContainer {
unitFrameUnusedFunc = <func> @Blizzard_CompactRaidFrames\Blizzard_CompactRaidFrameContainer.lua:47
flowSortFunc = <func> @Blizzard_CompactRaidFrames\Blizzard_CompactRaidFrameManager.lua:763
groupMode = "flush"
raidUnits = <table> {}
frameUpdateList = <table> {}
flowOrientation = "vertical"
showBorder = true
borderFrame = CompactRaidFrameContainerBorderFrame {}
flowFilterFunc = <func> @Blizzard_CompactRaidFrames\Blizzard_CompactRaidFrameManager.lua:831
groupFilterFunc = <func> @Blizzard_CompactRaidFrames\Blizzard_CompactRaidFrameManager.lua:861
partyUnits = <table> {}
flowMaxPrimaryUsed = 215.99999943769
flowMaxSecondaryUsed = 504.00015238576
units = <table> {}
flowPauseUpdates = true
enabled = true
frameReservations = <table> {}
flowFrames = <table> {}
0 = <userdata>
displayFlaggedMembers = true
}
(*temporary) = "CompactUnitFrameTemplate"
= <func> =[C]:-1
= <func> @..\kgPanels.lua:286

Please provide any additional information below.

Not sure if this is even a Grid2 problem but it's the only raidframe addon I use atm

This error in Blizzard Compact raid frames occurrs even with Grid2 disabled.