Problem with unpredictable blitter

This is a problem I have had for all my games. I am using a blitter that is supposed to float up and display a number, for example when you pick up a score or the numbers that display how much damage you did on your enemy. For some reason though it acts very unpredictable. It seems its loop sometimes is not fired, and whatever I have done I have not been able to figure out why, to me it seems like a bug at this point. What I have done to see if the loop fires is to turn on a flag when the blitter prepares a number, if then that number has not been turned on after the number is created it is destroyed. I have got away with this in my recent game Tap Heroes so sometimes a number is not shown, but it feels very sloppy and I would like to get this fixed for my next game..

Could anyone take a look at my example and see if you can see any problem or why this is not working right? You click with the mouse to spawn numbers. I did notice if you click slowly it seems to work fine, but spawn to many numbers to rappidly and it does not work as it should. I have also posted a video here to demonstrate: https://dl.dropboxusercontent.com/u/...terProblem.wmv

No one knows a way to fix this unpredictability? :/

Here's the fix:
Attachment 17421

The cause:
Coins somehow interrupted each other, so instead of them going all at once, I made an ForEach loop so only one is checked at a time.
(I've also made a forEach on blitters, but that didn't do anything)

Thanks :D I am not still sure why this is happening but this seems to work!