EH status not getting updated

In EM system event handler is getting created from TM and EH status like Shipment End getting updated from ECC.

Currently we are facing issue is that event handler is getting created in EM system but when we update Shipment End status in ECC

then in EM ,EH status not getting updated.

I checked RFC and Que blocks and no issue found.

Also no application log.

What else needs to checked?

Ravi