I have looked into it and it is actually not a bug in Equalify.
Spotify has moved you back to 16 bit audio instead of 32 bit. Which will make that preset not work.
When using 32bit audio there is a lot of extra room to alter the audio signal.
Spotify has used 16 bit audio since Spotify launched in 2008.
Now to your preset:
I’m sorry to say it… But that preset is insane, and should never be used by anyone. You should try to make a new one following the rules below.
- The fat white line should be as close to the center line as you can,
- You should use as few bands as possible
- You should try to remove from the signal instead of adding.
You should also re-enable the limiter that you have most likely disabled.
An equalizer is not an amplifier. You should not use it to make the audio louder.
The fact that it is possible to add 100x +16dB bands on top of each-other does not mean you should, or that the output is going to be pleasant.