Re: [sr-dev] [kamailio/kamailio] rtpengine -> send_rtpp_command(): mismatched cookie in websocket response (#2862)

Hi Henning,

After full night of production traffic I discovered this is not related to RTT, as happens to low-latency proxies too (~10ms no packet loss). Interesting part is that it hapens 99.9% in BYE so I think it may be related to rtpengine_delete() and fetching call stats like described in docs ``` 5.5. rtpengine_delete([flags]) Tears down the RTP proxy session for the current call. This populates the statistics pseudovariables (such “mos_min_pv” etc). ```

last night statistics - 83k calls:

``` root@kamailio5:~# grep -c 'ksr_lwsc_callback(): losing read buffer of 4096 bytes' /var/log/syslog 1433 root@kamailio5:~# ```