Almost yes to all (I don't remember if the world crashes or never load). I suspected that it was lost.If the same world is crashing, and if you can create or join other worlds, I’m sorry to say that the crashing world is most likely a corrupted game file and there is no way to recover it.
unluckily I didn't think about the possibility to recover old version of the world from Drive before the expire time.
Do someone know how to edit a drive-saved world to put there all stuff I had already? (that are almost everything available in pre-hardmode)