Test Runner bat via Octopus Deploy

I'm using Octopus Deploy to run a SOAPUI smoketest at the end of an installation. Im using Test Runner bat to start the whole process via Powershell :

cmd.exe /C "C:\Program Files\SmartBear\SoapUI-5.2.1\bin\TestRunner.bat" -sUK1 "-Dsoapui.properties.UK1=C:\temp\[client]\SOAP\UK1-Quote-UK1.properties" "C:\temp\[client]\SOAP\UK1-Quote-Smoke-soapui-project.xml" >C:\temp\[client]\SOAP\SOAPlogging.txt

The log output is as follows :

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del %TEMP%\jfxrtpath
set CLASSPATH=%CLASSPATH%;%JFXRTPATH%

rem JVM parameters, modify as appropriate
set JAVA_OPTS=-Xms128m -Xmx1024m -Dsoapui.properties=soapui.properties "-Dsoapui.home=%SOAPUI_HOME%\"

if "%SOAPUI_HOME%\" == "" goto START
set JAVA_OPTS=%JAVA_OPTS% -Dsoapui.ext.libraries="%SOAPUI_HOME%ext"
set JAVA_OPTS=%JAVA_OPTS% -Dsoapui.ext.listeners="%SOAPUI_HOME%listeners"
set JAVA_OPTS=%JAVA_OPTS% -Dsoapui.ext.actions="%SOAPUI_HOME%actions"

:START

rem ********* run soapui testcase runner ***********

More?

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However when run in Powershell directly, everything runs as expected, all tests pass, the output file is generated showing that everything has been successful.

I don't think this is a SOAPUI issue, but im hoping someone has seen the same issue and has a resolution.

Thanks

Jon