@bdfd
Sorry to hear that.
I've try to reproduce Your conditions:
-Win10 fully updated,SH3D-32b=>work;
-SH3D, French localization=>work;
-Win10-French+SH3D-64b+French=>work.
I don't know howto reproduce Your issue.
If You say some frame remain on screen, try to launch from command prompt and maybe You receive some error messages.
On previously versions of my plugins I've discover errors when other locale than English are set but I've fix it on last versions.

@Mike53
I never test it in such conditions; multiple instances of SH3D, copy from one and Paste special to another.