DeviceToken - I'm getting the token but according to APN it's invalid.

I have no problems finding a users' device token. For instance, I'm finding a token like this:

e633b18d3fee90b7ff89dd86f38a4359eb45****

APN, however, constantly reports that the token is invalid. But, that is the token I get from e.deviceToken and Ti.Network.remoteDeviceUUID. The thing that I find weird, however, is that the read-only value Ti.Network.remoteDeviceUUID gives the impression the DeviceToken is an UUID, but that one I'm getting definitely is not.