Created attachment 140396 [details]
strace output

PulseAudio 12 module-ladspa-sink fails to load ladspa plugins from default paths, like /usr/lib64/ladspa. PulseAudio 11 is good.

Running with LADSPA_PATH=/usr/lib64/ladspa or symlinking plugin to /usr/lib64/pulseaudio/ still works.

default.pa line
load-module module-ladspa-sink sink_name=tap_eq sink_master=remap plugin=tap_eq label=tap_equalizer control=5,3,1,-2,1,3,9,10,100,200,400,1000,3000,6000,12000,15000

"journalctl --user -u pulseaudio" lines
jun 24 04:10:31 Matrix pulseaudio[15208]: E: [pulseaudio] module-ladspa-sink.c: Failed to load LADSPA plugin: file not found
jun 24 04:10:31 Matrix pulseaudio[15208]: E: [pulseaudio] module.c: Failed to load module "module-ladspa-sink" (argument: "sink_name=tap_eq sink_master=remap plugin=tap_eq label=tap_equalizer control=5,3,1,-2,1,3,9,10,100,200,400,1000,3000,6000,12000,15000"): initialization failed.

$ strings /usr/lib64/pulse-11.1/modules/module-ladspa-sink.so |grep /lib64/
/usr/lib64/pulseaudio
/usr/lib64/ladspa:/usr/local/lib/ladspa:/usr/lib/ladspa:/usr/local/lib64/ladspa:/usr/lib64/ladspa

$ strings /usr/lib64/pulse-12.0/modules/module-ladspa-sink.so |grep /lib64/
/usr/lib64/pulseaudio