ANT build produces not working package with 3.5 AIR SDK

Question

I used AIR SDK 3.1 and have ANT script to compile and package iPad(AdHoc for testing) application. I tried to switch to 3.5 SDK today but when I install *.ipa and launch on iPad it hangs at the spalsh screen.
I tried to make release build using Flash Builder UI and it worked. So the question is has anything changed in terms of packaging/compilation options?
Just in case attached my current ANT script:
<target name="Compilation" depends="Initialization">
     <mxmlc file="${main_class}" output="${swf_file}" locale="${LOCALE}"  static-rsls="false" accessible="false" configname="airmobile"
                optimize="true" actionscript-file-encoding="UTF-8" keep-generated-actionscript="false" static-link-runtime-shared-libraries="true"
               debug="${debug_mode}"  failonerror="true" fork="true"  maxmemory="1024m">
          <source-path path-element="${class_path}"/>
          <load-config filename="${FLEX_HOME}/frameworks/airmobile-config.xml"/>
          <load-config filename="${config_file}"></load-config>
          <library-path dir="${lib_path}" includes="*.swc" append="true"/>
     </mxmlc>
</target>
<target name="Packaging" depends="Compilation">
      <java jar="${ADT}" fork="true" failonerror="true">
          <arg value="-package"/>
          <arg value="-target"/>
          <arg value="ipa-test"/>
          <arg value="-provisioning-profile"/>
          <arg value="${ios_provisioning}"/>
          <arg value="-storetype"/>
          <arg value="pkcs12"/>
          <arg value="-keystore"/>
          <arg value="${ios_keystore}"/>
          <arg value="-storepass"/>
          <arg value="${ios_pass}"/>
          <arg value="${ipa_file}"/>
          <arg value="${app_descriptor}"/>
          <arg value="${swf_file}"/>
          <arg value="-C" />
          <arg value="${class_path}"/>
          <arg value="assets/icons"/>
          <arg value="-C" />
          <arg value="${release_path}"/>
          <arg value="Default-Portrait.png"/>
     </java>
</target>
Thanks

Answer 1

You may want to try using the settings used by Flash Builder to package the application, more details of which can be found at:http://helpx.adobe.com/x-productkb/multi/compilation-results-flex-builder-flex.html
Update your ANT script with these, and try again.
Please get back and tell if it resolved the issue and what change you had to made in your ANT script.
Thanks,
Neha