SOLVED: Problem with file names

[TheDreadPirate]

I don't see any Jellyfin documentation explicitly saying colons aren't allowed. But I'd recommend avoiding special characters, like colons, in both the folder names and file names. Except where appropriate. Even using dashes in certain ways can throw off the file name parser when it is constructing the query for metadata. For example, you can have multiple versions of a movie (not for TV shows) in one listing. Say you have an old movie that has a black & white and colorized version. You would name the files like this.

Movie Name - [Black and white].mkv
Movie Name - [Colorized].mkv

Some people have triggered weird behaviors because they used dashes in their file name to separate some file info, like codec and resolution, etc.

I've given up on "accurate" file names in favor of just making it easier for Jellyfin. At the end of the day, you're using Jellyfin's interface and won't see the file names anyway.