hatch entity miss data

[insertintosb]

when I use the lib to read dwg file, hatch entity miss some data... the dwg file version is r2018 。
It becomes normal when the version is r2004 ~ r2007;
The CAD soft I use is ZWCAD 2020 , OS is WIN10 .
hatch2007

hatch2018

hatch.zip

[insertintosb]

the lib version i use is libredwg-0.13.3.7233-win64.

[rurban]

The biggest difference I see is that the 2018 hatch is associative, the 2007 hatch not.
2007 has much more info, 2018 stops processing the paths. Need to cross-check

[insertintosb]

I just test some CAD files of different version with same hatch config (all are associative) once more;
The results are as follows:
r2004 have the entire information.
r2007 hatch's name miss, only the first letter appear.
r2018 hatch's name miss, only the first letter appear , and the difine lines also miss.
I find that the hatch's define lines arise even though the version is r2018 if the path contains no splines by change, the hatch's name is as before.