Sydney's Siberia: Softlock after trying to load a second image

[n0samu]

Describe the bug

Link to SWF: http://www.secrettechnology.com/sydney/siberia.swf
(Note: This is a multiasset site, so the SWF needs to be loaded via its URL)

In sydney's siberia, you're supposed to be able to click to zoom until you load and enter a new image, and repeat the process as many times as you want. In Ruffle, the initial image loads fine, but when trying to load an image by zooming in, a softlock occurs (the loading never completes).

The code reuses the same AS Loader object named imageLoader. That Loader has an event listener attached to it that's supposed to fire whenever an image load completes:
imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,readImage);
But Ruffle is only firing this event once. I think this is the same problem as #11554.

Expected behavior

Image loading should work more than once.

Affected platform

Browser's extension

Operating system

Windows 10

Browser

Firefox 114

Additional information

Sydney's Siberia was originally mentioned in #1811.