Disappearing wall



Hi, I tried to do an energy model of a building with OpenStudio and I constantly have to start over due to missing walls, I saved as an OpenStudio Model (.osm) this way I don’t get the error message and I manage to keep most of the items I have designed but still some are missing the next time I import the OpenStudio file, I would appreciate all of your help with this issue.

Best regards,



And how are you exporting to .osm?
The extension might be outdated.