Posted by dellus on Nov 17, 2020; 11:18pm
URL: https://forum.librecad.org/Cannot-save-files-on-Librecad-tp5719729p5719732.html

Maybe you have accidentally saved to a wrong folder or something like that. Perhaps Flywire's advice helps https://forum.librecad.org/Lost-drawings-tp5718198.html
Check your procedure, Save or Save as....
I faintly remember there have been saving problems with some 2.2.0 development releases. You might try a different version.