[Csnd-dev] possible issue with ALSA midi?

I recently acquired a Pi 5, which I've equipped with a Pisound board (like
my older Pis). I can build Cs7 without any issues, but I notice that when I
query MIDI devices using ALSA as the interface, I get an error:

dave@phonon:~/src/csound/build $ csound -+rtmidi=alsa --midi-devices
rtalsa: Wrong callback.0 MIDI input devices
rtalsa: Wrong callback.rtalsa: Wrong callback.0 MIDI output devices
rtalsa: Wrong callback.            overall amps:      0.0
           overall samples out of range:        0
0 errors in performance
Elapsed time at end of performance: real: 0.001s, CPU: 0.001s


If I specify portmidi, no errors:

dave@phonon:~/src/csound/build $ csound -+rtmidi=portmidi --midi-devices
rtmidi: PortMIDI module enabled
3 MIDI input devices
 0: 0 (Midi Through Port-0)
 1: 1 (pisound MIDI PS-28625BA)
 2: 2 (pisound-ctl)
3 MIDI output devices
 0: 0 (Midi Through Port-0)
 1: 1 (pisound MIDI PS-28625BA)
 2: 2 (pisound-ctl)
                   overall amps:      0.0
           overall samples out of range:        0
0 errors in performance
Elapsed time at end of performance: real: 0.003s, CPU: 0.003s


Same results on my Pi 4 running Cs7. I don't have a Pi running Cs6 for
comparison. The Pi 4 is running bullseye; the Pi 5 is running bookworm.

FWIW, I don't really care which interface I use, and I'm fine with using
portmidi, but I thought this might indicate an issue.

- Dave