The DB Navigator suddenly refreshes and runs very slow, when trying to use triggers in a table (4334380)

The DB Navigator suddenly refreshes and runs very slowly, when trying to use triggers in a table.

Steps to replicate problem:
1. Open DB Navigator (used F12)
2. Open Schema  
3. Open Tables
4. Select table with triggers associated
5. Open table (click on +)
6. Open Triggers (click +)
It's at this point that SQL Navigator starts running very slow.

The Oracle user trying to see the triggers should have   the select_catalog_role granted.

WORKAROUND:
None

STATUS:
Waiting for fix in a future release of SQL Navigator for Oracle