The "Get Full Report" ("Update full report") button in the Enforce console does not generate a tablespace summary report. (System > Database > Tablespaces Summary). This is titled "DLP Database Diagnostics" in the HTML file created.
To generate one manually please see the below instructions.
sqlplus /nolog
conn protect@<SID or SERVICE_NAME
>@export_gather_stats.sql [NAME YOUR OUTPUT FILE].html
This script can also be ran directly on the DB server separately. No modifications are necessary.