To further investigate this issue, Applications Manager (AM) will need to be upgraded to version 9.1.2 or higher, as additional debug information was added that will allow Automic to further investigate the issue.
Within AM v9.1.2, the dump predecessor debug can be enabled with the setting -DdumpPredecessors=true. This new option will give Automic more information regarding the predecessor and what could potentially cause the above scenario to occur. The information will be written to the RmiServer logs.
Enabling dump predecessor debugging.
Upgrade to Applications Manager 9.1.2 or higher and enable RmiServer debug, in addition to the new debug setting (listed in the description section) to capture the event.
Afterward, create an incident with Automic Support and provide the RmiServer logs.