Germania
Thanks so much for trying this out, Germania!
Your workaround might work for me as well… As StreamFab already lists most of the subtitles I want, i.e. English, Spanish, Spanish (LatAm), Italian and French, I could then try to swap Ukrainian for German by selecting German in the player and re-analysing. I may have no control over which language is dropped though.
The only problem is: would I have to do that 171 times, i.e. once for each episode?
I also looked at the link you gave. I installed the script mentioned there and, when I set the Netflix locale to Germany, I am able to get the German subtitles. But then another language drops off, as I guess for Seinfeld only six subtitle tracks are pre-loaded by Netflix.. With The King of Queens it’s seven for example.
If all else fails I could just download the German subtitles using the script and merge them with MKVToolNix, but of course it would be great to not have to do that.
Should I maybe still file this as a bug report? Maybe StreamFab could try to force-load the chosen subtitle languages from the SF preferences. I originally thought that was what that setting was for.
On a side note: I can’t quite understand how the script is able to extract WebVTT subtitles with proper positioning when Netflix itself seems to be serving me only SRT files in the app/browser.