Re: The "Custom commands" feature cannot launch MPV.
What is "MPV"?
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
C:\Applications\mpv-lazy\mpv.exe "webdav://!U:!P@!@:!#!/!"
* 2026-05-26 10:03:07.520 (EOSExtException) Cannot execute 'C:\Applications\mpv-lazy\mpv.exe'.
* 2026-05-26 10:03:07.520 System Error. Code: 1223.
* 2026-05-26 10:03:07.520 操作已被用户取消。 ---- It means "the operation has been cancelled by the user."