No Audio Ouput on Crossover VST3

[sinjitonayo]

Summary

Hi, I'm trying to run the Crossover VST3 plugin on MacBook Air M1, with macOS Sequoia 15.2 using Ableton Live 12 Suite 12.1.5, but it doesn't seem to produce any audio output in the DAW.

The plugin is detected by Ableton and I can see its parameter controls. However, changing the available sliders/parameters does not appear to affect the audio, and no output is produced.

Since the plugin does not seem to have a UI, I'm not sure how to properly debug this or confirm whether the plugin is loaded correctly.

Environment

• Device: MacBook Air M1
• OS: macOS Sequoia 15.2
• DAW: Ableton Live 12 Suite 12.1.5
• Plugin format: VST3
• Plugin: Crossover VST3

What I tried

• Loaded the plugin in Ableton Live
• Confirmed that the plugin appears in the DAW
• Checked that parameter controls are visible
• Changed the available slider/parameter values
• Tried passing audio through the plugin

Expected behavior

The plugin should process the incoming audio and produce output through Ableton Live, even if it's in idle position.

Actual behavior

The plugin loads and exposes parameters, but it does not produce any audible output.

Question

Is there a recommended way to debug this plugin on macOS/Ableton Live, especially since it does not have a UI? Also, is there any known compatibility issue with macOS Sequoia or Ableton Live 12? I have provided the image as well