Question Connection To Qaddb Hangs

MFG/Pro 8.5F
Progress 8.3B25
Main qaddb hangs when one of the other connecting database is marked inactive (in 34.1 - Database Connection Maintenance, the active flag is unchecked).
When trying to do an mpro on the qaddb, the session hangs.
Had to restart the databases to establish back the connection.
Any thoughts/ideas/suggestions to resolve this issue.

TIA
 
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