There are two files, namely
tcl/target/1986ве1т.cfg
tcl/target/к1879xб1я.cfg
which have some cyrillic (I guess) letters and my windows can't handle that. Also I doubt that somebody actually can enter them without tab completion.
Solution: Rename them to something more ascii like
Can you please clarify what exactly the issues is with those filenames which have proper UTF-8 names, when exactly does it fail?
closed due to no recent activity - please reopen if this is still an issue.