There is one related fix, however it is for 7.1.2. If you have same problem happening in 7.1.3, contacting SAG support is the best that you can opt for…
Attempts to create a scheduled task to run on another server in a cluster result in error [ISS.0085.9234] Invalid target node.
In a clustered environment, if a user on one Integration Server tries to schedule a task to run on another server in the cluster, the following error is issued:
Error updating task: [ISS.0085.9234] Invalid target node
This problem occurs because the scheduler expects an unqualified target host name, but receives a fully qualified host name instead.
This issue is resolved.