[SR-Users] crash after 100 trying on NOTIFY

Hi, We've had the following crash. Kamailio 4.0.4 Client sends SUBSCRIBE, kamailio answers 202. Kamailio sends NOTIFY, client answers 100 trying. fr_timer is 5000. The client doesn't send "200 OK", so kamailio generates 408. Any suggestions? Regards, Kristian Høgh (gdb) bt #0 0x00007f3ab0c91852 in cancel_branch (t=0x7f3a9c779190, branch=0, reason=<value optimized out>, flags=4) at t_cancel.c:284 #1 0x00007f3ab0cd9c9b in reply_received (p_msg=0x7f3ab26ac560) at t_reply.c:2198 #2 0x0000000000458924 in do_forward_reply (msg=0x7f3ab26ac560, mode=<value optimized out>) at forward.c:799 #3 0x00000000004a108e in receive_msg ( buf=0x8dbd80 "SIP/2.0 100 Trying\r\nVia: SIP/2.0/UDP 10.10.10.10;branch=z9hG4bK83f6.32f26ad2.0\r\nTo: sip:554@<domain>;tag=7ce8fb6e\r\nFrom: sip:144@<domain>;tag=93983715339d3cf39b"..., len=<value optimized out>, rcv_info=0x7fff70f07090) at receive.c:272 #4 0x0000000000533ed6 in udp_rcv_loop () at udp_server.c:557 #5 0x000000000046964a in main_loop () at main.c:1638 #6 0x000000000046c4e2 in main (argc=<value optimized out>, argv=<value optimized out>) at main.c:2566