There are no models listed in the dialog 'Models' but there are supposed to be models in this dgn file. Is there any way how to recover or recreate the models?
You can try to use the model reindex keyboard input to restore the models of the DGN.Key-in: model reindexThis will reindex the models and all the missing models should be listed afterwards.
Cannot Delete a Model
Lost Model List (Forum)
Phantom Model in your file (AskInga)