Benchmark_tx of gnuradio-3.2.2

Hi all,

At first, I use the benchmark_tx to send with usrp-a. After sending is
finished ,I use the benchmark_rx to receive on the same usrp and there
another sender which is usrp-b.But I can’t receive anything. The
usrp_source_c gives nothing.

If I reload the firmware of usrp-a, everything is Ok and I can receive
content sent by usrp-b, Anyone encounterd the same problem? My gnuradio
3.2.2-release and gnuradio 3.1.3 don’t have this problem.

Any reply is appreciated.
Thanks a lot.