I'm unable to import a DXF file. Get the following error message - "Unable to import: Unexpected Group type constant UNKNOWN for group code 160

[MichaelMurphy7]

eclipse.buildId=unknown
java.version=1.8.0_151
java.vendor=Oracle Corporation
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_AU
Framework arguments: -keyring /Users/michaelmurphy/.ce_keyring -showlocation
Command-line arguments: -os macosx -ws cocoa -arch x86_64 -data @noDefault -keyring /Users/michaelmurphy/.ce_keyring -showlocation

Warning
Mon Jul 15 10:29:27 AWST 2019
java.lang.NullPointerException - [ModalContext]

java.lang.NullPointerException
at com.procedural.formats.shapefile.ShapeImportWizardPage$3.run(Unknown Source)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)

[LR]

Try exporting only a selection out of AutoCAD.