Can't run scripts with certain characters in the pathname

Running Dorico 1.2.10.139 on Windows 10.

To reproduce:

  • Create two blank files, e.g., C:\A.lua, and C:\Ø.lua.
  • Script -> Run Script… -> C:\A.lua (no result)
  • Script -> Run Script… -> C:\Ø.lua (console reads: “cannot open C:\Ø.lua: No such file or directory”)

This occurs for any Norwegian character (æÆøØåÅ), including if any parent directory contains any of them.