iOS: StreamByter AUv3 crashes in JUCE host (AudioPluginHost, Camelot) when moving parameters

Hi JUCE team,

I’m reporting a reproducible issue with StreamByter (AUv3) when hosted in my JUCE-based app, and I can reproduce the same behavior in JUCE AudioPluginHost.

In AudioPluginHost, if I load StreamByter, open the “All Parameters” window, and move a parameter slider, the AU crashes showing the GUI window blank/transparent.

I can’t reproduce the same crash in AUM or Logic with the same plugin.

My current impression is:

  • this may still be a plugin-side issue

  • since it appears specifically with JUCE-based hosting, there may be an opportunity for an additional guard/check in JUCE to prevent a hard crash in this scenario.

I’m attaching a short video showing the behavior in AudioPluginHost.

Please let me know what extra details would be most useful from my side.

Best regards,
Samuele