I also have regular problems with some subtitles. My solution is to enable using an external player in the jellyfin AndroidTV app (i think its under playback->advanced options) and then use VLC player which i've also installed to play the movie. That has never failed to me.
Downside is that unlike the regular exo player i don't think it supports dolby vision, so i have to change this setting back and forth occasionally. It used to be that there was an option that you could tick, so it asked you everytime which player to use before playing a movie (with the downside that it couldn't resume playing at a saved timestamp), but after a somewhat recent update this went away.
Not denying that Germany faces serious issues, but using Intel as an example to show Germany's national problems imo is just wrong. Ifthey want to make that connection they better provide some evidence showing this move isn't purely motivated by the internal problems Intel currently faces, which recently have been in the news quite a bit.
Now if TSMC suddenly decides to cancel their new German fab (admittedly not leading edge like Intel's would have been), then it's a point taken.
Also you can't withdrawal what isn't there. They have barely started doing any work in Magdeburg