The nether and a account issue

When offline signed out minecraft tends to crash when coming out of the nether, I don't know if this is a data issue but this never happend last update, even when I'm online it tends to crash, but with my friend it does not, Another thing that has happened is I have to sign is manually cause of an error, and when I press save to Microsoft account that doesn't work, I can't show the screenshot since I have not captured it I know I should but its not anything I think about before doing it, I hope this gets fixed, thank you for your time.