Red Zeppelin LV2 causes Reaper to crash with pipewire on arch linux about avldrums.lv2

[x42]

This is likely a Reaper specific issue, but to make sure, and a proper back trace is needed.
But to double-check: Does the plugin runs in other LV2 hosts on your system? Ardour, Carla, qtractor, jalv... ?

[plainoldcheese]

I was hoping it wouldn't be reaper specific. It does run in carla and seems like it does make audio but I have not managed to get carla to output sound when run as standalone with pipewire. I will check with jalv as well.

[plainoldcheese]

the output from jalv seem to be the same but it does run

Plugin:       http://gareus.org/oss/lv2/avldrums#BlackPearl
UI:           None
JACK Name:    Black Pearl Drumkit
Sample rate:  96000 Hz
Block length: 1024 frames
MIDI buffers: 32768 bytes
Comm buffers: 524288 bytes
Update rate:  30.0 Hz
ALSA lib pcm_dsnoop.c:600:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1035:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
ALSA lib pcm_dmix.c:1035:(snd_pcm_dmix_open) unable to open slave

> fluidsynth: warning: No preset found on channel 9 [bank=128 prog=0]

is the fluidsynth warning anything to worry about?