Can you tell me which version of the MC40 software you have runnin on the device? This sounds like a bug. Unfortunately the only way is to look at the friendly name. Also does this unit have the MSR built in or is it the one that does not have the MSR?
Not sure which software version is most helpful...
Kernel Version: 22.214.171.124 ny21rs0001-svc@ZIN52VMUBMC01#1
Build Number: 01-271301-G-1100-0013-00-M1-111712
This is a model MC40N0 with the built-in MSR.
I searched the Moto support site but didn't see any firmware updates, only the recovery package.