Maybe check if the embedded library LibAddonMenu-2.0 in the addon MasterThief is updated to the newest version properly.
Because the changelpg says: update to libmenu release24
And we are currently already at r28 or r29!
And btw: The addon is using the libraries wrong! It is loading them via the MAsterThiefs.txt file directly and thus could break other addons this way.
-Remove the subfolder "libs" and install the libraries as standalone versions with their own txt file (LibAddonMenu-2.0, LibScroll)
-The lines in the MasterThief.txt here should be removed totally:
Code:
Libs\LibStub\LibStub.lua
Libs\LibScroll\LibScroll.lua
Libs\LibAddonMenu-2.0\LibAddonMenu-2.0.lua
Libs\LibAddonMenu-2.0\controls\panel.lua
Libs\LibAddonMenu-2.0\controls\submenu.lua
Libs\LibAddonMenu-2.0\controls\button.lua
Libs\LibAddonMenu-2.0\controls\checkbox.lua
Libs\LibAddonMenu-2.0\controls\colorpicker.lua
Libs\LibAddonMenu-2.0\controls\custom.lua
Libs\LibAddonMenu-2.0\controls\description.lua
Libs\LibAddonMenu-2.0\controls\dropdown.lua
Libs\LibAddonMenu-2.0\controls\editbox.lua
Libs\LibAddonMenu-2.0\controls\header.lua
Libs\LibAddonMenu-2.0\controls\slider.lua
Libs\LibAddonMenu-2.0\controls\texture.lua
Libs\LibAddonMenu-2.0\controls\iconpicker.lua
Libs\LibAddonMenu-2.0\controls\divider.lua
-And these lines need to be added below the line ## OptionalDependsOn:
## DependsOn: LibScroll