* In Aria Automation 8.18.1 with NSX-T 4.2.2.0.0.24730888, a custom Day 2 action to update load balancer pool members does not work when health monitors are configured on the load balancer routes.
* Disabling the health monitor allows the update to proceed successfully.
Aria Automation 8.18.1
NSX-T 4.2.2.0.0.24730888
It is happening because some of the routes have health check and some do not. There in a NullPointerException in the code which was being swallowed, and the request was never reaching completion.
This issue is planned to be fixed in an upcoming 8.18.1 patch 4