Flex Module throwing security sandbox violation

I converted a standalone Flex app into a module. Now that it's a module, when I login (and call the backend services), I'm getting a security sandbox violation.

The login handler throws this fault String: 'Send Failed', with a more descriptive: 'Channel.Connect.Failed error NetConnection.Call.Failed: HTTP: Failed:url: 'http://myUrl:8080/AppManager/messageb开发者_运维问答roker/amf'.

Then the FB console throws an 'unhandled security sandbox violation error'.

Can converting an app into a module cause a sandbox violation?

Thanks for any helpful tips.

I'm making extensive use of modules and haven't run into this. There are memory issues I ran into that I had to fix by actually declaring an instance of the modules in the main modules...I didn't have to create an instance, just declare a variable to get the linkage right, then have all the other modules compile against that main module. Memory errors went away, and all the other modules were much smaller too.