Question:

Why is the VMobile Object Configuration (VMOC) without a Profile ID not working for an Object with multiple VMOCs configured?

Answer:

If multiple Full or Top Level VMOCs exist with or without a Profile ID, then only those with the user's Profile ID are run. This is to preserve current behavior where there is a VMOC with a profile configured.

Related Documentation:

CRM Help Documentation:  Using VMobile Object Configurations