Some of my (multiuser) extensions suffered from problems when using in Stencyl 3.5 (Beta)
Flash works without a problem with these URLLoader/Loader issues.
For the other publications you need to cast them:
* Error: e.target.data : IEventDisplatcher has no field data
Change code e.target.data to cast(e.target, URLLoader).data
* Error: openfl.events.IEventDispatcher has no field content
Change code
e.currentTarget.content.bitmapData into: cast(cast(e.currentTarget,Loader).content,openfl.display.Bitmap).bitmapdata;
See also:
https://github.com/openfl/openfl/issues/1321 This will still work when the extension is used in Stencyl 3.4
Also some references to openfl.utils need their lime.utils counter-parts:
Change : import openfl.utils.UInt8Array
into: import lime.utils.UInt8Array
This topic might be updated later when I encounter more issues.