When trying to move the transmog window using the BlizzMove addon (allow to move Blizzard windows), the text and features disappear and nothing is clickable anymore.

Huh,. I came to report something else and got sidetracked by this. I also use BlizzMove.

There was no error and closing and re-opening the window fixed it (although BlizzMove was effectively blocked from working because of it). BUT...

I opened my appearances frame, and moved it... then opened the transmog, and got this error, along with a messy amalgamation of the two frames:

1x BetterWardrobe\Modules\Wardrobe-Appearances.lua:1175: Action[SetPoint] failed because[SetPoint would result in anchor family connection]: attempted from: WardrobeCollectionFrame:SetPoint. [string "=[C]"]: in function SetPoint'
[string "@BetterWardrobe\Modules\Wardrobe-Appearances.lua"]:1175: in function SetContainer' [string "@Blizzard_Collections\Blizzard_Wardrobe.lua"]:142: in function <...ceBlizzard_Collections\Blizzard_Wardrobe.lua:140> [string "=[C]"]: in function Show'
[string "@FrameXML\UIParent.lua"]:2928: in function SetUIPanel' [string "@FrameXML\UIParent.lua"]:2773: in function ShowUIPanel'
[string "@FrameXML\UIParent.lua"]:2641: in function <FrameXML\UIParent.lua:2637>
[string "=[C]"]: in function SetAttribute' [string "@FrameXML\UIParent.lua"]:3492: in function <FrameXML\UIParent.lua:3471> [string "=[C]"]: in function ShowUIPanel'
[string "@FrameXML\UIParent.lua"]:2083: in function <FrameXML\UIParent.lua:1287>
[string "=[C]"]: in function `TurnOrActionStop'
[string "TURNORACTION"]:4: in function <[string "TURNORACTION"]:1>

Locals:
(*temporary) = WardrobeCollectionFrame {
GetAppearanceItemHyperlink = defined @BetterWardrobe\Modules\Wardrobe.lua:1757
SetsTab = WardrobeCollectionFrameTab2 {
}
searchBox = WardrobeCollectionFrameSearchBox {
}
GetActiveTab = defined @BetterWardrobe\Modules\Wardrobe.lua:1315
progressBar = {
}
selectedTransmogTab = 1
ContentFrames =

{
}
VisualToggle = BetterWardrobeVisualToggle {
}
inAlternateForm = false
OnKeyDown = defined @BetterWardrobe\Modules\Wardrobe.lua:1487
SetContainer = defined @BetterWardrobe\Modules\Wardrobe.lua:1159
OnShow = defined @BetterWardrobe\Modules\Wardrobe.lua:1431
ClickTab = defined @BetterWardrobe\Modules\Wardrobe.lua:1203
ItemsTab = BetterWardrobeCollectionFrameTab1 {
}
FilterDropDown = BetterWardrobeFilterDropDown {
}
activeFrame = {
}
SetSearch = defined @BetterWardrobe\Modules\Wardrobe.lua:1806
HideAppearanceTooltip = defined @BetterWardrobe\Modules\Wardrobe.lua:1702
GetSearchType = defined @BetterWardrobe\Modules\Wardrobe.lua:1822
SetTab = defined @BetterWardrobe\Modules\Wardrobe.lua:1210
UpdateTabButtons = defined @BetterWardrobe\Modules\Wardrobe.lua:1530
SearchBox = WardrobeCollectionFrameSearchBox {
}
selectedCollectionTab = 1
CheckTab = defined @BetterWardrobe\Modules\Wardrobe.lua:1195
RestartSearchTracking = defined @BetterWardrobe\Modules\Wardrobe.lua:1792
SavedSetsTab = BetterWardrobeCollectionFrameTab4 {
}
BW_SetsHideSlotButton = {
}
RefreshCameras = defined @BetterWardrobe\Modules\Wardrobe.lua:1716
TransmogOptionsButton = BW_TransmogOptionsButton {
}
ReloadTab = defined @BetterWardrobe\Modules\Wardrobe.lua:1189
0 =
FilterButton = {
}
OnHide = defined @BetterWardrobe\Modules\Wardrobe.lua:1463
SwitchSearchCategory = defined @BetterWardrobe\Modules\Wardrobe.lua:1774
ExtraSetsTab = BetterWardrobeCollectionFrameTab3 {
}
GetAppearanceNameTextAndColor = defined @BetterWardrobe\Modules\Wardrobe.lua:1722
SetsCollectionFrame = {
}
OnLoad = defined @BetterWardrobe\Modules\Wardrobe.lua:1323
UpdateUsableAppearances = defined @BetterWardrobe\Modules\Wardrobe.lua:1709
ItemsCollectionFrame = {
}
SetsTransmogFrame = {
}
OnEvent = defined @BetterWardrobe\Modules\Wardrobe.lua:1337
UpdateProgressBar = defined @BetterWardrobe\Modules\Wardrobe.lua:1768
numTabs = 4
Tabs = {
}
SetAppearanceTooltip = defined @BetterWardrobe\Modules\Wardrobe.lua:1535
ClearSearch = defined @BetterWardrobe\Modules\Wardrobe.lua:1816
GetAppearanceSourceTextAndColor = defined @BetterWardrobe\Modules\Wardrobe.lua:1741
selectedTab = 1
OpenTransmogLink = defined @BetterWardrobe\Modules\Wardrobe.lua:1508
}
(*temporary) = "TOPRIGHT"
(*temporary) = 0
(*temporary) = 0
`