Check your drawlist.
It could contain elements with problems.
For example if you read your warnings from DICE:
Element =27711/51206
Warning- Attribute SIGREF contains invalid ref =19519/224225
That element =27711/51206 has a missing reference.
It could be that database 19519 is not in the MDB anymore and so all the pointers to it has been "lost"
Database number is calculated like this: 19519-8192-8192=3135
Check your drawlist.
It could contain elements with problems.
For example if you read your warnings from DICE:
Element =27711/51206
Warning- Attribute SIGREF contains invalid ref =19519/224225
That element =27711/51206 has a missing reference.
It could be that database 19519 is not in the MDB anymore and so all the pointers to it has been "lost"
Database number is calculated like this: 19519-8192-8192=3135