It seemed to start working when I came back from lunch, but then I reproduced it again, and saw this in the logs:
2015-03-31 12:28:41,402 - WARNING - file:///usr/lib/arm-linux-gnueabihf/qt5/qml/Ubuntu/Components/PageWrapperUtils.js:30: TypeError: Cannot read property 'createObject' of null
When I press the unresponsive back button:
2015-03-31 12:29:53,349 - WARNING - file:///usr/lib/arm-linux-gnueabihf/qt5/qml/Ubuntu/Components/PageWrapperUtils.js:104: TypeError: Cannot call method 'destroy' of null
It seemed to start working when I came back from lunch, but then I reproduced it again, and saw this in the logs:
2015-03-31 12:28:41,402 - WARNING - file:// /usr/lib/ arm-linux- gnueabihf/ qt5/qml/ Ubuntu/ Components/ PageWrapperUtil s.js:30: TypeError: Cannot read property 'createObject' of null
When I press the unresponsive back button:
2015-03-31 12:29:53,349 - WARNING - file:// /usr/lib/ arm-linux- gnueabihf/ qt5/qml/ Ubuntu/ Components/ PageWrapperUtil s.js:104: TypeError: Cannot call method 'destroy' of null