Posted by LordOfBikes on May 10, 2021; 8:54pm
URL: https://forum.librecad.org/Unable-to-save-hatches-to-DXF-R12-tp5720643p5720644.html

What is the source of this R10 DFX?
I can't find HATCH in my R10 or R12 references, so I must assume, that HATCH isn't supported by these versions.
Opening the file could work by chance, when the reader falls back to R14 for HATCH. I haven't checked this yet.
Saving the file in R14 format worked for me. R14 is the oldest reference where I found HATCH entities.

I also tried to open the R10 with Autodesk TrueView 2019 and the file was rejected because of an invalid code in the first entity. Also an indication for an invalid or incompatible created R10 file.