2.7 HTMLLoader, loading html which loads an AVM1 swf which loads other AVM1 swfs.

I have not yet had time to test thoroughly, only just discovered the issue and thought I would post in case anyone already had any insights.

We have an AIR app that loads an .html file into an HTMLLoader. This .html file uses swfobject.js to load an AVM1 .swf (AS2, dev'd by a 3rd party), which in turn loads several of its own child .swf's and configuration .xml files from an assets directory local to the application.

Prior to AIR version 2.7.1.19610, this worked fine (at least, confirmed correct behaviour when using 2.5.0.16600; so it's possible it was an update in between, but this issue was only noticed after our most recent automatic AIR runtime update).

After an update of the runtime to this version, the first AVM1 .swf loads ok - it contains a preloader for its children, which reaches 100%, but then blanks out with nothing more happening. Right-clicking results in the context menu displaying "Movie not loaded..." and "About Adobe Flash Player 10.3.183.5".

Running the .html file outside of the AIR application - that is, doubleclicking and loading directly (in Chrome & IE, at least) - results in the original correct behaviour, so it does not appear to be the Flash Player version.

Our next step is to build our own AVM1 .swf's to help test, as we don't have great access to the internal workings of the ones being provided by the 3rd party. Without testing in our own AVM1 .swf's, there are no errors thrown that we have been able to see. Will update when we have time to investigate further - for the time-being, we will ensure the client remains using AIR 2.5.