On the left top, click on "File" and "Import Into Level". Save it in your "ContentBrower". In the next dialouge: "Import as Dynamic": True; "Hierachy Type": Level Assets and "Bake Pivot in Vertex": True
Oof i forget sry, people forget anywhoozle, The light leak issue is solved by using a dark HDRI and a AO or custom AO i used an AO that it right at the edges of the sharp 90 degree angles. ^If anyone needs more information than that you can let me know. quick save: ^Here i mention my experience if it helps the issues. Hope…