Hello,

I have searched in vain for an answer to this apparent bug.

In my two-floor simulation, choosing a floor on the upper level (for example, gray wood), overrides any ceiling choices on the lower level. That way, when looking up on the lower level, instead of a normal ceiling, you see the gray wood floor of the above room. The "show floor/ceiling" box is checked for both rooms. The only space where I am able to choose a ceiling color is for those areas of the upper floor that have not been defined as a "room".

Thank you.