Application traffic not following expected path

Start with documentation page:

https://www.juniper.net/documentation/us/en/software/session-smart-router/docs/ts_applications/

Additional things to check:

Very helpful to examine on each router in the path.

show session by-id <ID>

If SVRoBGP is in use, determine where the route is learned from.

show bgp <route>

provides more detail for the specific route, decisions