While loop problem

if i have two Sprites A and B and want A to move to the right while overlapping with B:

If I use the A overlaps with B the loop only iterates once per frame.

If I change it to use the System is Overlapping A and B it works perfectly.

Why aren't these two behaving in the same way?

Can you upload a .cap that shows the difference?

Example cap http://www.scirra.com/phpBB3/download/file.php?id=412

I have another example with a flood fill of detector objects

http://www.scirra.com/phpBB3/download/file.php?id=413

This example only works with one of the two types of overlapping. And when it works it for some reason inserts two detectors at the first block posisition. That is also a bit weird (bug?)

Looks like a bug, better submit it to the tracker.

yes, i noticed this also. using a regular is overlapping with a while causes a crash. however, using advanced overlapping seems to do the trick.

My problem is that with the advanced overlapping I get an extra "overlap event" with an instance that is already destroyed.