Hi, thanks for the reply.
There is no swarm in the list of active tasks. I googled this issue yesterday and looks like there’s no such thing as swarm agent on mac os. Correct me if i’m wrong.
Force No Precomputed Lighting is disabled. I tried to turn it on and off. Once it’s on, it just skips lighting build in a second but when it’s off, the Building lighting message pops up for a minute or so and then it fails.
Small update
It looks like the problem is exactly in my project because I tried to build lighting in a separate project and it works well. Also, it doesn’t work on all levels, even on the new empty levels (not duplicated).
Here’s a small background about the project. Initially I started working on it a year ago in UE 4.27, but later moved to 5.1. Nothing worked correct so I created a clean project in UE 5.1 (for mobile with scalable settings) and migrated all project files to it. Everything works except the current problem with building lighting. Maybe there’s something I’m missing in project settings? Btw, allow static lighting is on…