Not really. Issue easy to see from provided SDP.
Basically after SU upgrade "Route:" completely ignored in ACK...
SU361:
Max-Forwards: 70
Route: <sip:XX@XX:5060;transport=udp;lr>
Contact: <sip:XX@XX>
SU372:
Max-Forwards: 70
Contact: <sip:XX@XX>
Since that is not RFC compliant I assume that is another bug in SDP presented in latest updates or is it locally to me?