with_fx :reverb and set_mixer_control!

[janolap1]

System Information

Sonic Pi version: 3.1.0
OS: Windows 10

Hi,

I'm playing aroud with Sonic pi, and trying this simple code :

load_snippets("d:/users/janolap1/Desktop/snippets")
# Thank you for snippets, awesome in live !
set_mixer_control! lpf: 30
set_mixer_control! lpf_slide: 16, lpf: 130

live_loop :drums do
    sample :loop_breakbeat, rate: -1 ,beat_stretch: 4
  sleep 4
end


live_loop :nappe do
  use_synth :dark_ambience
  play :d3, release: 8, amp: 4
  sleep 8
end

Randomly, when using and stacking/unstacking some effects on the sample :loop_breakbeat, (reverb, echo, slicer), the global lpf activates and goes back to 30 (or 0, I don't know exactly).

I don't know if it's an issue or a error in using set_mixer_control! which makes it behave oddly.

Thank you for this nice software (seriously).

Cordially

Jean