audio data can't send by rivermax_player

[DaveHu-TVU]

tx_cmd1: ./rivermax_player --media-files bbb_sunflower_1080p_60fps_10bit422.mp4 -s sdp_multi_2110_20-30.txt -p a -l
tx_cmd2: ./rivermax_player --media-files bbb_sunflower_1080p_60fps_10bit422.mp4 -s sdp_multi_2110_20-30.txt -p v -l
rx_cmd1: . /media_receiver -i 172.16.146.55 -m 224.1.1.2 -p 6010
rx_cmd2: . /media_receiver -i 172.16.146.55 -m 224.1.1.1 -p 6000

Phenomenon:
When PC1 executes "tx_cmd1", PC2 executes "rx_cmd1", no data can be received.
But when PC1 executes "tx_cmd2", PC2 executes "rx_cmd2", data can be received.

So I think the sdp file or rivermax_player source code has a bug in the audio sending module, please help me to check.

The console logs and rivermax logs are attached.
Also the sdp_multi_2110_20-30 files are in the attachment.

console.log
rivermax_0224_074057_280787.log
sdp_multi_2110_20-30.txt