Lights won't build but SwarmAgent launches

Hi,

I got a problem with my project that my lights won’t build in the project. I use Unreal Engine 4.26.

On the other hand, I do see in SwarmAgent that a process is being carried out in this. When this process is completed, nothing will change in UE4.

So the bottom line is that my lights are no longer being built.

Help me out please