RAC connection. ‘Toad Script Runner (TSR)’ gets error: ORA-12154: TNS: could not resolve the connect identifier specified (4295769)

RAC connection. Starting ‘Toad Script Runner (TSR)’ or ‘Quest Script Runner (QSR)’ gets error:

ORA-12154: TNS: could not resolve the connect identifier specified

For the TSR, the error also happens on regular non-RAC connections. 

The contents of “Database” field seems to have no Service Name and/or is cut off.

Examples:

(DESCRIPTION=(ADDRESS=(PORT=1521)(HOST=EXLH-SCAN)(PROTOCOL=TCP))

(DESCRIPTION=(ADDRESS=(PORT=1521)(HOST=ALVSKILPATR2.PROD.QUEST.C

(DESCRIPTION=(ADDRESS=(PORT=1521)(HOST=RAC12CA-SCAN.DEV.QUEST.CO

Note: Starting “Auto Optimize SQL” also gets the same error.