Posted by dellus on Feb 02, 2021; 10:28pm
URL: https://forum.librecad.org/Hatch-disappears-on-layer-attribute-change-tp5720129p5720134.html

Yes, unfortunately, this is normal for V 2.1.3. It is a bug.
This is fixed in the current V 2.2.0 rc2.
But still there is a strange behaviour, as fa201 has also noticed. The hatch moved to the different layer still seems to be connected to the layer it has been created on. If you switch that original layer invisible, the hatch disappears, too.
But if you create the hatch on a different layer than the associated polyline from the onset, everything is all right.