OK, the import process never complete for me using V8i Ss6. I did notice something odd in Solibri were there is a folder named "Group", something I don't recall seeing before, and all of the objects under it are Boundary Representations, aka, BREPs. So I'm guessing they are the source of the error message.
The positive news is that the process was successful using the current Technology Preview 2 version of ABD CONNECT Edition - Zipped DGN attached.
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