Layer transfer dws file becomes completely empty overnight

[7Archaeologist84BFCP]

Greetings,
I have painstakingly mapped layers using AutoCAD's layer transfer tool and have been using it for several days with good results, however, when I came to my computer today, the layer mapping settings have become completely empty. Is this tool reliable? I'm sending a picture with layers in the drawing on the left and layers that are saved in the dws on the right, however the mapping below became completely empty...

[7Archaeologist84BFCP · Accepted solution]

I know what happened now.
When you transfer, it asks you whether to just transfer layers or to transfer and save and I must have saved on an empty drawing, which is my mistake. Anyways, remember to make backups of your .dws files!