Tablespace not showing up in dba_tablespace_usage_metrics VIEW

Hi

We have a 11.2.0.3 database on linux

We have observed that the view "dba_tablespace_usage_metrics" is NOT showing some of the tablespaces

For example, here are 3 tablespaces as reported by dba_Tablespaces

Select * from dba_tablespaces where tablespace_name like 'APP%'

APPQUE 8192 65536 1 2147483645 2147483645 65536 ONLINE PERMANENT LOGGING NO LOCAL SYSTEM NO AUTO DISABLED NOT APPLY NO HOST NO

APPQUEIDX 8192 65536 1 2147483645 2147483645 65536 ONLINE PERMANENT LOGGING NO LOCAL SYSTEM NO AUTO DISABLED NOT APPLY NO HOST NO

APPQUESUMMARY 8192 65536 1 2147483645 2147483645 65536 ONLINE PERMANENT LOGGING NO LOCAL SYSTEM NO AUTO DISABLED NOT APPLY NO HOST NO

But when we query dba_tablespace_usage_metrics, it shows nothing