Simple equalizer plugin with generic I2S DAC

I’m having some problems to enable Simple equalizer plugin together with my Generic I2S DAC. I am using latest Volumio 2.773 on RPi4

If I don’t use the plugin, system works fine (Generic I2S + Software Mixer)

as soon as I enable the plugin and wait some time for reloading configuration, audio is gone. after reboot, i still have no audio. I am suspecting it has something to do with settings changed by the plugin, HW mixer is selected but Generic I2S DAC has no HW mixer.