Why does use_target_properties_master_list only work for *?

I have a target_property I have added to OEM named "Backup Type", and I have made it specific to databases.

$ emcli add_target_property -target_type="oracle_database" -property="Backup Type"

It is assigned a property_name of "udtp_1"

When I go to add a drop down list to this target_property using the use_target_properties_master_list verb, it tells me that "Property does not exist". It give the same error whether I choose one type or three.

When I do the EXACT same thing except I use the -target_type ="*", the use_target_properties_master_list verb works just fine.