1. whenever I open an older file (which was created before LyX 2.4) I get the following pop-up, and I don't know how to stop it from happening, those files have no changes at all.
2. the preview environment doesn't work at all (the file compiles and everything it's just inside the LyX document the preview environment does nothing).
(I'll add that I've followed a guide so that I can write in Hebrew so I have many packages that are related to that and I don't fully know what packages are there)