I want to give you an update on this issue. We have found a solution that does not require the user to do DMSimplify anymore prior to running Bimify for this problem. The fix will be available in the next release.
Thank you again for reporting …
We are investigating this.
For now you can fix this by running the command DmSimplify on the solid and then redo Bimify.
When you want to start with solids without any BIM data assigned yet, I want to recommend to choose the structural disc…