I find it weird that there has been no big noise about this one already. After wasting enough time on debugging, I figured it was time to google JIRA:
http://bugs.adobe.com/jira/browse/ASC-3630
In brief, Vector unshift () removes elements from the end of the vector while adding what’s to be added at the beggining.
A bug like this makes me so sad. Maybe because the typed array was such an anticipated feature of FP10, and because this is such a simple, stupid and brutally overlooked bug. I was thinking, the problem is listed as a compiler bug; I’d rather blame it on the Player API. Any opinions?
Anyway, the workaround is as simple as it gets, but is just as ugly:
vectorInstance.splice ( 0, 0, ... );
And you might as well vote for it on JIRA.

