[WARNING ODB-0126] error: polygons in special nets are not supported

[dirigent-JHK]

Hello.
I'm trying to read LEF file, DEF file(version 5.8) via read_lef/read_def.
When trying read_def, the following error occurs;
[WARNING ODB-0126] error: polygons in special nets are not supported

My def file includes the followings;

VERSION 5.8 ;
DIVIDERCHAR "/" ;
BUSBITCHARS "[]" ;
...
SPECIALNETS 1 ;

• POLYGON LM6 ( 65421828 8188475 ) ( 65426128 8188475 ) ( 65426128 8192390 ) ( 65430564 8192390 ) ( 65430564 8188475 ) ...
  ...
  That is,
  many POLYGON's
  and each POLYGON includes many points.

Is none of POLYGON supported in OpenROAD?
If so, is there any workaround for this?

[gadfort]

If you can provide a test case it may be possible to implement the support

[maliberty]

Have you tried -continue_on_error as a workaround? The polygon would not appear but it might be useful depending on your use case.