Even for minor/simple MEP modeling this solution is an unreliable half-baked implementation and absolutely incomplete feature with no clear explanation of how to reasonably transition and no backwards compatibility. Listen to your users needs. Please...

I'm seeing this in both Archicad 26 and 27. Lazlo N. (community admin) mentioned that for roof and beam elements to cut properly they must be connect + merged with the roof element. See this post: https://community.graphisoft.com/t5/Modeling/Complex-...

Thanks again for your input. The merge does in fact work to create the cuts properly which I suppose is a good enough workaround if we have our structural members modeled within the roof element (as they would be in real life) and want their cut to s...

Lazlo, thanks for your reply on this as well as the link. Much appreciated. I will give this a try and hope this solves the problem for now. I’m still confused as to why some of the roof joists show with cut fills in the section and others do not. I ...

Wishing that were the true in my case. The video above is of a freshly installed AC 27 using the included GRAPHISOFT template file. Have made no customizations or changes to the file, view settings, section settings, etc. Still having the same issue ...