Switching tabs sometimes results in error

[sundermann]

Sometimes when switching tabs of a conversation WIM breaks. I cannot really reproduce it consistently but it seems like it might have something to do with switching between a conversation from battlenet with ingame whispers (but it might also be unrelated). Once this bug occurs it is no longer possible to switch tabs:

Message: Interface\AddOns\WIM\Sources\TabHandler.lua:488: Action[SetPoint] failed because[SetPoint would result in anchor family connection]: attempted from: WIM3_msgFrame2:SetPoint.
Time: Fri Dec 13 17:22:56 2019
Count: 1
Stack: Interface\AddOns\WIM\Sources\TabHandler.lua:488: Action[SetPoint] failed because[SetPoint would result in anchor family connection]: attempted from: WIM3_msgFrame2:SetPoint.
[C]: ?
[C]: in function SetPoint' Interface\AddOns\WIM\Sources\TabHandler.lua:488: in function JumpToTab'
Interface\AddOns\WIM\Sources\TabHandler.lua:334: in function <Interface\AddOns\WIM\Sources\TabHandler.lua:329>

Locals:

[sundermann]

It seems this can be fixed by replacing WindowParentwith UIParent in TabHandler.lua.