Lookup Error ORA-02019 / ORA-00942 if Schema Name in Object Explorer is changed & new Editor opened. (4301616)

Lookup Errors ORA-02019 or ORA-00942 are received if the Schema Name under Object Explorer is changed & a new Editor Window is opened.  The query statement that is ran is the same.

ERRORS:

If query is using a DB Link:
Lookup Error - Oracle Database Error: ORA-02019: connection description for remote database not found
Example:  SELECT * FROM emp@MAUI_DBLINK3;

If just a regular table query:
Lookup Error - Oracle Database Error: ORA-00942: table or view does not exist
Example:  SELECT * FROM Table_Name;