Serviio

I bought a Roku Premiere 4K for my non-smart TV to stream video files from a PC that has Serviio installed. Some of the video files have non-English names (Korean to be specific) and the file names show up as blank. They all play fine, just can't see the file names. Is there anything I can do to make the names show up? other than renaming files to English which is not an option.
Thanks.

AFAIK Serviio serves the special characters correctly. Perhaps Roku cannot display them.

If someone could provide me with an example file, I can see if I my Roku players have any issue, and I can check with the Roku employee who now manages their media player.