StoreFront Propagate Changes not working

Running Propagation results in MMC returning "Snap-in Unavailable: This snap-in performed a non-valid operation and has been unloaded ... Exception Message: Object reference not set to an instance of an object" In event viewer, Citrix Delivery Services Admin records "Error in retrieving...

Storefront 3.15 | Storefront propagation fails.

Propagation fails on Server 2012R2 machine. In event logs: Log Name: Citrix Delivery Services Source: Citrix Configuration Replication An error occurred when starting the 'WAS' Windows service. System.ServiceProcess.TimeoutException, System.ServiceProcess, Version-4.0.0.0, Culture=neutral,...

Error: "Propagation failed on one or more servers" when you attempt to propagate changes to StoreFront Server Group

Consider the following scenario. You have two or more StoreFront servers in the Server Group. When you attempt to propagatechanges to the StoreFront Server Group, it might fail with the error: "Propagation failed on one or more servers " as shown in the screenshot below: Additionally, following...