I can now also see the following in rholog.txt. Not sure if it was there before:
I 01/01/2009 00:26:49:000 ed63dd0e RhoRuby| require_compiled: motoapi/elements
I 01/01/2009 00:26:51:000 cd57b8d2 Core::Initialise| RhoElements is using Config file: \Program Files\angular\Config/Config.xml
I 01/01/2009 00:26:51:000 cd57b8d2 CAppManager::CAppManager::Init| Engine is use is the Motorola WebKit engine (default)
I 01/01/2009 00:26:51:000 cd57b8d2 Core::CApp::Init| Regular Expressions will not be applied to EMML Tags
I 01/01/2009 00:26:51:000 cd57b8d2 Core::Initialise| RhoElements Component Version: RhoElements Runtime = 18.104.22.168.0
Probably something was not correctly setup or configured on the device and the clean boot fixed this.