Lightmass crashed

Hi rendering gurus,

I’ve got the following error message and I don’t know what the problem is here. It’s a small map with nothing special. A few ours before, lightning build was without problems.


I thank you very much in advance for your appreciated help.
Regards
cgarchitekt

OK - found the solution by searching in this Forum. Here you can find it:

https://forums.unrealengine.com/development-discussion/architectural-and-design-visualization/1446716-please-help-what-happen-lightmass-crash