that means there is some collision volume or primitive that is in the way of spawning. if you imported the level as a single static mesh, you should turn its collision off and make a separate collision mesh that is simpler. then you can set its collision to block all.
i wouldn’t recommend importing a whole level as a single static mesh, because breaking it down into separate parts allows for culling, LODs, instancing, and reuse between levels, which will save you memory and increase performance.