[sr-dev] RTPEngine stops working randomly

Hi, Since last couple of weeks we noticed that RTPEngine random stops working for chrome to chrome (i.e. webrtc) calls. After some digging in syslog we found that when problem occurs following error is appears in logs, -- rtpengine[24162]: [ollkcvqi1m9k1n55lh2a port 49936] DTLS error: 1 (tlsv1 alert decrypt error) -- For each call afterwords it gives this exact same error (with different call-id and port of course) and media flow fails. The only workaround we found so far is to restart the rtpengine service. The problem is very random, sometimes it does not happens for days, and sometimes it happens say every couple of hours or so. Kamailio version is stable release 4.2.1-fad00a. RTPEngine version is 3.3.0.0+0~mr3.7.0.0. Operating System is Debian 7.x, 32bit with Linux Kernel version 3.10-0.bpo.2-686-pae. Thank you.