I use the rollover member change behaviour and it works
perfectly (it is mentioned in the property inspector). After a few
minutes it doesn’t work, the behaviour disappear. In the
property inspector it says (586 (internal) (not a behaviour). In
cast 586 I had something that I have deleted. Why is that?
The Property Inspector is indicating that a behavior which
was in cast slot 586 has been replaced by a member which is not a
script. It looks like you deleted the Rollover Member Change
behavior while the movie was running.