Now I found there 1 real Bug.
If you spawn something in this loop and make directly after it something with it like "set angle". It does not change the created one, it change all instance.
-> Spawn Sprite2 on sprite (image point sprite.WaitVar)
-> Sprite2 set angle toward sprite.ImagePointX(sprite.WaitVar + 1)
does change all instances
-> Spawn Sprite2 (image point sprite.WaitVar
+ pick nearest Sprite 2 to sprite.ImagePointX(sprite.WaitVar)
-> Sprite2 set angle toward sprite.ImagePointX(sprite.WaitVar + 1)
does change only the right instance