Gst-plugins-rs webrtc-precise-sync-recv example producing artifacting

Forced VP8. Still the same results

Sender: uridecodebin ! videoconvert ! webrtcsink pipeline

Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
0:00:00.428244036  3290 0x76ad30000d60 WARN                GST_PADS gstpad.c:4392:gst_pad_peer_query:<nicesrc0:src> could not send sticky events
0:00:00.428591226  3290 0x76ad200a6db0 ERROR              webrtcbin gstwebrtcbin.c:7170:gst_webrtc_bin_get_transceiver:<webrtcbin0> No transceiver for idx 0
0:00:00.428608378  3290 0x76ad200a6db0 WARN               webrtcsrc net/webrtc/src/webrtcsrc/imp.rs:854:gstrswebrtc::webrtcsrc::imp::Session::remote_description_set::{{closure}}: Transceiver for idx 0 does not exist, GStreamer <= 1.24, adding it ourself
Redistribute latency...
0:00:00.668032322  3290 0x76ad30000f70 INFO         rtpjitterbuffer rtpjitterbuffer.c:874:rtp_jitter_buffer_calculate_pts: resync to time 0:00:00.625117583, rtptime 21:29:52.568111111
0:00:00.866459515  3290 0x76ad0c034a10 INFO         rtpjitterbuffer gstrtpjitterbuffer.c:4381:do_deadline_timeout:<rtpjitterbuffer0> got deadline timeout
Redistribute latency...
0:00:00.972853900  3290 0x76ad30001ea0 WARN            videodecoder gstvideodecoder.c:3670:gst_video_decoder_clip_and_push_buf:<vp8dec0> Dropping frame due to QoS. start:0:00:00.691784249 deadline:0:00:00.691784249 earliest_time:0:00:00.755961638
0:00:01.202762060  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 35 expired NACKS
0:00:01.400297561  3290 0x76ad30001c60 ERROR            rtpvp8depay gstrtpvp8depay.c:212:send_last_lost_event:<rtpvp8depay0> Sending the last stopped lost event: custom-downstream event: 0x76acd0002eb0, time 99:99:99.999999999, seq-num 493, GstRTPPacketLost, timestamp=(guint64)1158450916, duration=(guint64)33333333, retry=(uint)1, might-have-been-fec=(boolean)true;
0:00:01.595561847  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 59 expired NACKS
0:00:01.597278573  3290 0x76ad30000f70 WARN         rtpjitterbuffer rtpjitterbuffer.c:836:rtp_jitter_buffer_calculate_pts: backward timestamps: ignore rtx packet
0:00:01.988361803  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 23 expired NACKS
0:00:02.381153939  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 26 expired NACKS
0:00:02.773993073  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 44 expired NACKS
0:00:03.166836282  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 35 expired NACKS
0:00:03.559648275  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 33 expired NACKS
0:00:03.952462888  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 37 expired NACKS
0:00:04.345299701  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 20 expired NACKS
0:00:04.738084866  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 35 expired NACKS
0:00:05.130881846  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 18 expired NACKS
0:00:05.523685805  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 6 expired NACKS
0:00:05.916506308  3290 0x76ad14063b00 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 12 expired NACKS
0:00:20.562064067  3290 0x76ad30001ea0 ERROR              webrtcsrc net/webrtc/src/webrtcsrc/imp.rs:553:gstrswebrtc::webrtcsrc::imp::Session::handle_webrtc_src_pad::{{closure}}:<webrtcsrc0> session "135906a4-8e74-4e37-a42b-ca2238263771" does not exist
0:00:20.576602596  3290 0x76ad200f9b00 ERROR              webrtcsrc net/webrtc/src/webrtcsrc/imp.rs:1414:gstrswebrtc::webrtcsrc::imp::BaseWebRTCSrc::start_session::{{closure}}:<webrtcsrc0> session "135906a4-8e74-4e37-a42b-ca2238263771" not found
0:00:20.577594482  3290 0x76ad200f9b00 WARN               webrtcsrc net/webrtc/src/webrtcsrc/imp.rs:1362:gstrswebrtc::webrtcsrc::imp::BaseWebRTCSrc::start_session::{{closure}}:<webrtcsrc0> session "135906a4-8e74-4e37-a42b-ca2238263771" not found
Got EOS from element "pipeline0".
Execution ended after 0:00:20.624321379
Setting pipeline to NULL ...
Freeing pipeline ...

Browser as sender:

Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
0:00:00.311989477  4584 0x7d9e24000d60 WARN                GST_PADS gstpad.c:4392:gst_pad_peer_query:<nicesrc0:src> could not send sticky events
0:00:00.312544000  4584 0x7d9e1c0a6db0 ERROR              webrtcbin gstwebrtcbin.c:7170:gst_webrtc_bin_get_transceiver:<webrtcbin0> No transceiver for idx 0
0:00:00.312563536  4584 0x7d9e1c0a6db0 WARN               webrtcsrc net/webrtc/src/webrtcsrc/imp.rs:854:gstrswebrtc::webrtcsrc::imp::Session::remote_description_set::{{closure}}: Transceiver for idx 0 does not exist, GStreamer <= 1.24, adding it ourself
Redistribute latency...
0:00:00.399948199  4584 0x7d9e24000f70 INFO         rtpjitterbuffer rtpjitterbuffer.c:874:rtp_jitter_buffer_calculate_pts: resync to time 0:00:00.343000339, rtptime 16:34:56.069066666
0:00:00.599988650  4584 0x7d9e080223a0 INFO         rtpjitterbuffer gstrtpjitterbuffer.c:4381:do_deadline_timeout:<rtpjitterbuffer0> got deadline timeout
0:00:01.443778795  4584 0x7d9e24000f70 WARN         rtpjitterbuffer rtpjitterbuffer.c:633:calculate_skew: delta - skew: 0:00:01.037330601 too big, reset skew
Redistribute latency...
0:00:02.492820793  4584 0x7d9e240015a0 WARN            videodecoder gstvideodecoder.c:3670:gst_video_decoder_clip_and_push_buf:<vp8dec0> Dropping frame due to QoS. start:0:00:02.202037956 deadline:0:00:02.202037956 earliest_time:0:00:02.226207916
0:00:04.822255448  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 12 expired NACKS
0:00:05.385347440  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 47 expired NACKS
0:00:05.408235723  4584 0x7d9e24000f70 WARN         rtpjitterbuffer rtpjitterbuffer.c:836:rtp_jitter_buffer_calculate_pts: backward timestamps: ignore rtx packet
0:00:05.948713417  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 9 expired NACKS
0:00:06.259957967  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 1 expired NACKS
0:00:06.405440545  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 6 expired NACKS
0:00:06.426562586  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 8 expired NACKS
0:00:07.018704702  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 1 expired NACKS
0:00:07.067204636  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 6 expired NACKS
0:00:07.107372709  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 6 expired NACKS
0:00:07.150078351  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 2 expired NACKS
0:00:07.193352244  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 7 expired NACKS
0:00:07.214483728  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 2 expired NACKS
0:00:07.235647468  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 7 expired NACKS
0:00:07.275647451  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 1 expired NACKS
0:00:07.319714743  4584 0x7d9e24000f70 WARN         rtpjitterbuffer rtpjitterbuffer.c:836:rtp_jitter_buffer_calculate_pts: backward timestamps: ignore rtx packet
0:00:07.565729555  4584 0x7d9e08064eb0 WARN              rtpsession rtpsession.c:4076:session_nack: Removing 1 expired NACKS