Building bugs (specifically roofing)

I’ve come across a pretty game haulting bug unfortunately, when I try building a roof sometimes I get the following error:

This usually happens when adding a roof onto a building with extensions, I wouldn’t mind but this stops you from being able to complete or delete the building :frowning:

Any chance we could see what the kind of building that gives you these errors looks like? In plan view obviously since they aren’t getting built.

same bug, alpha 10.5-10 (x64)

workers stopped working on the building after the error.

I got the bug which I cannot build walls at all, nor roofs