Crash when trying to extrude multiple characters

I’ve just installed it.
When exporting the shadow style, there’s an error saying that something went wrong with the RemoveOverlap filter on glyph “t_t°liga”.

It says the same if I try to apply the filter on that glyph from the pulldown menus in the preview window.
I tried to correct the direction path or Update Glyph info, or CleanUp the path… I still can’t apply the RemoveOverlap filter on that glyph…
What is wrong with this character ?