I'm sorry if you played between today and yesterday and had issues with the second level. I finally hit that point where making a change breaks something horribly and it's my fault for not testing it properly.
I found the issue and it will be fixed as soon as this patch is built.
I changed the way levels are streamed to reduce to CPU and memory load on your system. HOPEFULLY this doesn't cause any problems but I tested it for a good bit and it didn't affect any of those runs. Let me know if this is better or worse and I'll adjust accordingly.
Changed files in this update