Hm have you set player spawn positions like in the example levels? Have you debugged the player position, for example by checking the camera position in the default F11 debug panel? There have been a few bug reports before and I'm planning on making a new patch soon, so feel free to list all bugs that you find.
"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual
