Subtitles not working with amazon firestick?

I recently added the movie The Wailing. It is in Korean, with english sub-titles. If I play the movei on my computer the sub-titles display correctly. When I try to display using a firestick remotely - the text is sliced, with some appearing way over the the left, and some in the right spot. It is impossible to read.

I thought it might be due to a remote issue. When I try to use a different the latest Fire TV thing, on my local network, I get the same problem.

Where/how do I begin to troubleshoot this?

can you take a screenshot of what you mean by “sliced” don’t think i have ever heard of this before. are they just SRT subs?

I’m not sure how the subtitles are stored with the movies. Basically the way I get my content onto my plex media server - I use Make MKV and make an mkv file of each movie. Then all the info is in that file. I don’t know if there is a better way - wish I knew a better way, so I can use it going forward.

here is a picture of the text sort of messed up.

The text is sort of offset - ie not centered - although sometimes it is centered.

You can see in the 3rd pic - the bottom of the ‘g’ has been sliced, and is located under the ‘u’.

if you are using makemkv from a DVD or bluray then likely an image based subtitle format like PGS. but if you can post your XML media info for the file we can see if we have one like it to try and reproduce.

info on how to get the XML here https://support.plex.tv/hc/en-us/articles/201998867-Investigate-Media-Information-and-Formats

I think I’m posting the xml, does this work?

OK those are VOSUB subtitles but I can’t find any samples matching to try to reproduce with.

can you use mkvtoolnix to make a short sample of it. info on how to here https://support.plex.tv/hc/en-us/articles/201035968-Generating-Sample-Files-from-Media

Thanks for your help. In case you missed it - this file plays fine on my computer - just a problem when playing on with the Amazon Firestick. I’ll look into making a sample file.

i didn’t miss it. we have tried files with VOSUBS on Fire sticks and they played fine. that is why am i asking for a sample of your particular file since it may be related to something else in conjunction with the subs

Ok, I think I got one made. I made it in 1 min increments but I am unable to attach the file.

Does that link work? Never tried that before.

still not seeing any issue here with that file. is your server transcoding the file? if so is your server set to hardware transcode?

I’m not sure - sorry. How do I see that info?

Running into problem again. Different movie. Same issue.

Here is an update - I was trying to watch In Order of Disappearnce. Sub-titles were also messed up, just like the Wailing. I tried doing a optimized conversion to “Custom:Universal TV - 2.1 Mbps, 480p” from the original version I have which is “6.7 Mbps, 480i”

I wonder if the i vs p makes the difference? Ie interlace vs progressive?