KeyNotFoundException when exporting live2d and crashes

[TaokyleYT]

log:

[Info] Read assets...
[Info] Process assets...
[Info] Building asset list...
[Info] Building tree structure...
[Info] Finished loading 114 file(s) with 47143 exportable assets
[Info] Searching for Live2D files...
Unhandled exception. System.Collections.Generic.KeyNotFoundException: The given key 'AssetStudio.MonoBehaviour' was not present in the dictionary.
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at AssetStudioGUI.Studio.<>c__DisplayClass27_0.<ExportLive2D>b__0(Object state) in L:\GIT\AssetStudioMod\AssetStudioGUI\Studio.cs:line 973
   at System.Threading.QueueUserWorkItemCallback.Execute()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()

I was trying to extract live2d object from a unity game, and then every time I press export all live2d cubism model this error shows and then instantly crashes, I managed to capture this log by attaching a debugger.

[aelurum]

Interesting. It would be nice if you could attach a sample file that gives this error.
But I think it should already be fixed in commits that haven't been pushed yet.