Why when adding many static lights appear strange shadows?

This happens when I added a lot of static lights, shadows in random places, Is it a bug?

If you want to use static lights, you have to build light to actually see the finished result. As it says


Thank you for answering, but when I build the light those strange shadows still appear, I investigated everywhere but I did not find a solution, and I do not understand why they happen to me in my projects, in asset levels those strange shadows do not appear, it is not the lightmas either

Could be that your lightmap UV’s have an issue, or your lightmap resolution is too low, or you have a mesh issue, it might triangulate the mesh in a way you don’t want on import.