Oh no! I also have a problem: I translated the .vtt file to Polish (via a CAT tool that has a filter for them, so I am sure I did NOT break any of the… scaffolding 😂(essential file elements, tags, timing labels etc.)), then renamed it, because the CAT tool attached a _pl bit to it (so ultimately/after my modifications it had the name night_of_the_living_dead.vtt; just like the original one! And as it SHOULD be), deleted the original (English) subs file from the archive and replaced it with the Polish one; zipped the two files together (no "archive within an archive"/double layered nonsense this time! Just chose the two files and clicked Compress (or whatever this command is in English Windows OS; mine is obviously PL). Then created a new project, uploaded the ZIP… and well… the video works, but WHERE ON EARTH are my subtitles??? They don’t display! Also, for now the project is just on my PERSONAL Itch profile. Have not submitted it to LOCJam yet. It already has public status though. Does that mean I must dive into the index file and change "srclang" variable from "en" to "pl"?? (And make a NEW zip…)And here I hoped there would be no problems…😭