Which Flex SDK are you targeting in your project?
wow, sorry, I need to read a little more carefully. When you are compiling your assets in flash, are you compiling them against MX or spark? (i.e. CS5 or CS4, if CS4, which version of the component kit?)
I'm using Adobe Flash CS4, with Flex Component Kit 1.1.2. I've looked for an update to the component kit, and I can't find it. If there's a more recent version, I would love to know where to get it.
However, doing this first thing in my application seems to have done the trick:
but can't say for certain, because I don't have a reliable way to reproduce the error. Would love to know if anyone else has run into this error and can reproduce it reliably or knows anything about it.
If you go here: http://www.adobe.com/cfusion/entitlement/index.cfm?e=flex_skins, at the very bottom of the page it lists the newest component kits. One for Flex 3 projects, and one for Flex 4.
Have you tried the reproduction steps listed in the bug on this behavior? (make sure to note that there is a large correction half way through the comments.) That worked reliably for us to reproduce it every time.