One of the corridors in the dgn file containing the corridors got corrupted and throws me out of the software if I try editing or deleting it. I am not sure what the problem is and what is the best way to create backups. Also is there any way to save the corridor data like input file in MX , which can be used if crash occurs.
If you would like to upload your DGN file using our Secure File Update, I will be happy to take a look at it.
I uploaded the dgn file a few days back.
I was able to repair your DGN file and have sent it to you via email. Hope this helps!