Hi again Staffan,
I have uploaded a new version of SpokesWrapper.cs here (revised location):
Samples/wrappers at master · pltdev/Samples · GitHub
This time I have wrapped those event registrations in try/catch blocks as you proposed.
Please could you retest with this new version and let me know if it works without exception on your devices!
Thanks,
Lewis. 
Message was edited by: Lewis Collins