Posted by dellus on
URL: https://forum.librecad.org/dissapearing-library-tp5716856p5716876.html

No idea. So the LibreCAD opening box shows files that do not exist? Bad drive? Corrupted files? Can you find temporary back-up files, those with # or ~ ? You might search for the lost files with a recovery tool like "PC Inspector File Recovery". Or inspect with a Linux Live system.
Have you had any results meanwhile? Sorry for not being able to help more.