Just read the manual and you see that there is of course nothing like this mentioned. But strange ideas sometimes come up, some users think that the engine is sort of "exhausted" after a huge command and needs a wait() to "recover"!
In previous gamestudio versions (roughly before 7.5) it was necessary to add a wait instruction after level_load to make it possible to ent_create objects.
EDIT:
The level_load function is now executed directly and undelayed, thus a wait() after level loading is not required anymore.
(V7.07.2c beta: ok, long time ago)
