uvgRTP: Failed to flush the message queue

Hi, I want to use the uvgRTP to send H.264 frame. When use the following send method:

sender_stream->push_frame((uint8_t *)buffer, buffer_size, RTP_NO_FLAGS);

I got lot of error message as followint:

[uvgRTP][ERROR][::flush_queue] Failed to flush the message queue: 14
[uvgRTP][ERROR][::log_platform_error] sendmmsg(2) failed: Bad address 14