goto the "Recording History" page in the app and there is an option to click to view on map, or rety upload, or there is an icon to download as GPX. Long pressing the line item should also download the GPX.
but if there is an LOAD_RECORDING_NOPOINTS error, it might mean none of the data was saved for some reason. Also weird that LOAD_RECORDING_NOPOINTS is not translated.
It was recording OK for a good 3-4 hours before the app failed which was just when I opened the app outside of mobile coverage. Seems to have caused a crash.