Migrated Level/Scene to a new Blank template looks better than old project.

I’m working on a simple Archiviz scene in Ue 4.27.2 and I had to migrate my Level to a new Blank template to optimiza Package size and I noticed that the lighting in the imported scene to the new project looks better, than in the original project from where it came from, settingas are all the same, same lightmap build data, it was imported and it did’nt require me to rebuild, now the lighting, shadows look much better and smoother, why could that be happening?