Months ago on earlier versions of FS, I added a Restart button to our verto app which hangs-up the call and initiates a new one with a new ID. On FS 1.10.5, I notice that these 2nd calls usually immediately fail. For example, here's one that looks fine until NORMAL_CLEARING appears. The only thing unusual to me is the switching of the relay candidate's address to its raddr: 2020-11-18 21:31:35.444366 [NOTICE] avformat.c:785 video thread start b690a9b6-309f-7caf-df90-299302820fb9 2020-11-18 21:31:35.504354 [NOTICE] switch_rtp.c:1301 *Auto Changing audio stun/rtp/dtls port from (private relay raddr):12419 to (same private relay's candidate in SDP)*:14494 idx:4 80b39dc6-544c-49bf-a9f1-7e946a7eb1c2 2020-11-18 21:31:35.564421 [DEBUG] switch_rtp.c:7759 Correct audio ip/port confirmed. 80b39dc6-544c-49bf-a9f1-7e946a7eb1c2 2020-11-18 21:31:35.664366 [DEBUG] conference_member.c:1764 Raw Codec Activation Success L16@8000hz 1 channel 20ms 80b39dc6-544c-49bf-a9f1-7e946a7eb1c2 2020-11-18 21:31:35.664366 [DEBUG] conference_member.c:1811 Raw Codec Activation Success L16@48000hz 2 channel 20ms 80b39dc6-544c-49bf-a9f1-7e946a7eb1c2 2020-11-18 21:31:35.664366 [DEBUG] conference_loop.c:1338 Setup timer soft success interval: 20 samples: 160 from codec PCMU 80b39dc6-544c-49bf-a9f1-7e946a7eb1c2 2020-11-18 21:31:37.464367 [NOTICE] sofia.c:1089 Hangup sofia/internal/9900_3e1f002c-b97f-4565-85f8-2c886e71c96d_v-1*k-1 [CS_EXECUTE] [NORMAL_CLEARING] Does anyone spot a reason for the hangup? Maybe the sample count is too low?