Posted by dellus on
URL: https://forum.librecad.org/Object-In-Non-Existant-Layer-tp5713805p5713809.html

Maybe the drawing or parts of it have been imported as a block. Are the not wanted objects highlighted too when picking the wanted? Try modify - explode to disassemble the block.
More advanced cad systems like autocad have the feature to integrate several drawings with different scale into one drawing. For example the normal floor plan could be 1:100, a more detailed bathroom with all the tiles 1:20 and layout objects like the paper frame or a diagram would then be 1:1. I don't know how Librecad handles this if such a drawing is imported. Anyway it gets complicated then and your problems could have to do with that.