Unreal stuck at waiting for skeletel meshes to be ready

Development Asset Creation
1

So I downloaded Medieval Game Environtment from the marketplace, and Unreal 5.0.1 can’t open it. It gets stuck around 94% waiting for meshes to be ready. My specs 16gb ram 3200mhz GTX1650 i5-10400f

2

Easy questions first: How long have you let it do it´s stuff? For certain projects it is not out of the world to wait 30/60+ minutes to boot, when opening the project for the first time.