HTML component in Air is really useful, but when you want to put it in a semi transparent container or want to rotate it then there is a problem flash and pdf content won't render any more.
So if you want to see the flash in html component you shouldn't:
- change alpha to html component or to its container
- change scaling to something other than 1.0
- rotate it or the container holding the component
- set to the windowed application to be chromeless and transparent.
So if you for instance have an inner window which is semitransparent and want to display html content inside it you should not put the html component inside that window but put it in the main window which is not transparent and position it over the transparent part of the application.