Corridor missing in Project Explorer

I have a file with an active corridor in it, but the corridor does not show in the project explorer. I can't make any changes to the corridor. Is there anyway to fix this? We are about to turn in final plans so recreating the corridor would cause many issues. See image from the corridor file and exception log linked below.

/resized-image/__size/320x240/__key/communityserver-discussions-components-files/5922/2273.Screenshot.png

/cfs-file/__key/communityserver-discussions-components-files/5922/Exception_2D00_20220805_2D00_121608.log