WowAce

What version of Grid2  are you using (Version is displayed in General/About Tab) ?

Grid2 v2.0.70-beta

What game client version, classic or retail, windows or mac and language are you using ?

10.0.2 Retail Windows EU (EN)

What steps will reproduce the problem?

Setup theme switch per content type (e.g. Solo, Party, etc.)

Customize themes with detached headers

Leave Party so it's switching from party to solo theme

My profile (including Custom Layouts): https://www.protectedtext.com/grid2errorprofile -> Password Grid2

  
Did you try having Grid2 as the only enabled addon and everything else disabled?

Yes

Was it working in a previous version? If yes, which was the last good one?

Not sure, sorry.

Do you have an error log of what happened? If you don't see any errors, make sure that error reporting is enabled (`/console scriptErrors 1`) or install [BugSack](https://mods.curse.com/addons/wow/BugSack).

1x Grid2/GridLayout.lua:872: Usage: self:SetMovable(movable)
[string "=[C]"]: in function `SetMovable'
[string "@Grid2/GridLayout.lua"]:872: in function `SetupDetachedHeader'
[string "@Grid2/GridLayout.lua"]:574: in function `AddHeader'
[string "@Grid2/GridLayout.lua"]:543: in function `LoadLayout'
[string "@Grid2/GridLayout.lua"]:525: in function `ReloadLayout'
[string "@Grid2/GridLayout.lua"]:267: in function `RefreshTheme'
[string "@Grid2/GridCore.lua"]:271: in function `RefreshTheme'
[string "@Grid2/GridCore.lua"]:282: in function `ReloadTheme'
[string "@Grid2/GridLayout.lua"]:282: in function `?'
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:114: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:114>
[string "=[C]"]: ?
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:24: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:20>
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:59: in function `SendMessage'
[string "@Grid2/GridRoster.lua"]:306: in function `?'
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:114: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:114>
[string "=[C]"]: ?
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:24: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:20>
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:59: in function `Fire'
[string "@Ace3/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <Ace3/AceEvent-3.0/AceEvent-3.0.lua:119>

Please provide any additional information below.

Sadly, it doesn't happen everytime and is kinda hard to reproduce 100% but if that happens I have to manually switch themes. If you need any further information just let me know

Thanks!

Try out 2.0.71-beta, this version should fix the issue.

Problem is solved with 2.0.71-beta. Thank you very much!