testrunner hangs on INFO [SoapUITestCaseRunner] running step [Property Transfer test case]

Using SoapUI free version, Testrunner hangs on this step:

10:11:12,366 INFO [SoapUITestCaseRunner] running step [Property Transfer test case]

Notes/Observations:

Configuring log4j from [C:\Program Files\SmartBear\SoapUI-5.2.1\bin\soapui-log4j.xml]
10:11:05,758 INFO [DefaultSoapUICore] initialized soapui-settings from [C:\Users\charles\soapui-settings.xml]
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
10:11:07,542 INFO [PluginManager] Adding plugin from [C:\Users\charles\.soapuios\plugins\soapui-swagger-plugin-2.2-dist.jar]
10:11:07,542 INFO [PluginManager] Adding plugin from [C:\Users\charles\.soapuios\plugins\ready-mqtt-plugin-dist.jar]
10:11:08,341 ERROR [SoapUI] An error occurred [com.eviware.soapui.plugins.auto.factories.AutoImportMethodFactory], see error log for details
java.lang.ClassNotFoundException: com.eviware.soapui.plugins.auto.factories.AutoImportMethodFactory

10:11:10,145 INFO [PluginManager] 4 plugins loaded in 2604 ms
10:11:10,146 INFO [DefaultSoapUICore] All plugins loaded
SoapUI 5.2.1 TestCase Runner

runType = SEQUENTIAL

10:11:10,056 ERROR [SoapUI] An error occurred [com.eviware.soapui.plugins.auto.factories.AutoDiscoveryMethodFactory], see error log for details
java.lang.ClassNotFoundException: com.eviware.soapui.plugins.auto.factories.AutoDiscoveryMethodFactory