Code:
[20:53:54:177] INFO [void print_all_running_tasks()]: starting function
[20:53:54:177] INFO [void print_all_running_tasks()]: calculateFreeGPUmemory
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: mouse_key_observer
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: animate_mouse_map
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: garbageObserver
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: fmod_eventUpdater
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: fmod_trackMemoryUsage
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: inv_arrows
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: internalClock
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: scheduleHandler
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: load_new_room
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: mouse_key_observer
[20:53:54:177] INFO [void print_all_running_tasks()]: entity is NULL
[20:53:54:177] INFO [void print_all_running_tasks()]: exiting function
[20:53:54:177] INFO [void load_new_room (STRING* lName, STRING* entPosName)]: loading level: telescope_room.wmb
LevelInit at 765.687
14 entities 0 cameras 0 lights 0 sounds 2 paths
 1 lmaps 1 textures 7 meshes 7 submeshes 104 faces...ok
LevelReady at 767.752
[20:53:56:255] INFO [void load_new_room (STRING* lName, STRING* entPosName)]: level was loaded.



This is my logfile (published version of the game ... dev looks the same).
The "level was loaded." message is placed right before the "wait(1);". With reaching the wait the engine just crashes without any error message.