Changed our ceiling height?

[henryevans]

Hello, I have been working on a layout plan for several months.  Something happened and our walls became transparent.

Not sure if it is because we changed our ceiling height?

Any pointers would be much appreciated.

Thank you!

[Patricia G.]

Please, inform the OS (Mac or Win) as well as the name and version number (V9, V20, etc) of your program.

Also, please, explain what do you mean by "transparent". If you can, please post a screenshot showing the problem.