If you see Duplicate Session exception in the errors view,I believe following
could be the reason for flickering.
In Server Manager AIR application, when you register two ColdFusion server
instances running on the same machine with same hostname, you might experience
issues while fetching the settings from the server resulting in
DuplicateSessionException on the server. This can happen even when you edit the
host name to something else rather than removing and adding.
Workaround is to register different aliases to the same IP in the hosts file
and associating each alias with one CF server instance when there are multiple
instances running.
Eg: In the machine where Server Manager AIR application is running, add the
multiple hostnames to the servers
Say on the machine 10.101.25.22 , 3 ColdFusion instances are running and on
the machine where Server Manager AIR application (say 10.28.272.28) add as
follows in the hosts file
10.101.25.22 prod-1
10.101.25.22 prod-2
10.101.25.22 prod-3
And while registering the CF server instances use prod-1 for one instance,
prod-2 for second instance & prod-3 for 3rd instance as host names.
This resolves the issue.
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