Right – I’m pretty grumpy! Very grumpy in fact.  I’ve been working on a project and needed to use tweening.  So I thought no bother, quick job I’ll just use the standard Adobe AS3 tween classes.  Nice.  However all of a sudden I noticed that some of them started to hang.  Not all the time, I couldn’t replicate it consistently and also as the app relied on using the animations finishing to trigger the next event it was breaking the app.

If you’re having this problem check out this blog post and there is a fix in the comments.