FabFilter

Whenever I try to open the UI of Pro-Q 4, the DAW crashes. This happens with any plugin format in both Ableton Live 12 and Reaper. The plugin used to work fine, so I think the issue was introduced by an OS update, I'm currently on macOS 15.5. All other FabFilter plugins appear to work fine.

Crash log available here: drive.google.com/file/d/15GZnFXYhS49ABpbe4HzRZTw60-6X28HR

hi Nular,

Can you see if updating to the latest macOS Sequoia version 15.7 makes a difference?

Hi Ralph,

Just a few days after I posted my message here, Pro-Q 4 started working again. I haven't updated my OS or anything else AFAIK.

Today, Pro-Q 3 started behaving the same way: audio processing still works, I can load DAW sessions, but as soon as I open the plugin's UI, the DAW crashes.

Ableton Live crash log available here: drive.google.com/file/d/1fKhNzw6MGO1Vd_hGRdCaVzlWMLpK8vfV

Hi Nular,

I see some mention of Metal processes in the crash report. Can you see if disabling graphics acceleration makes a difference?

www.fabfilter.com/support/faq#how-can-i-disable-graphics-acceleration-on-my-computer

Hi Ralph,

Thanks, disabling graphics acceleration allowed me to open the plugin's UI without crashing as well as identifying the root cause of the problem.

The plugin's UI opened with its window filling most of my screen. This reminded me that I recently discovered a bug in Max/MSP: when Max's Global Zoom Factor is set to a value above 100%, opening any plugin's UI appears to result the plugin's window being zoomed in repeatedly in an infinite loop. Some plugins (including FabFilter ones) crash quickly, while others don't crash but display a transparent window. I guess I used Pro-Q 3/4 when investigating this bug, but the UI's preferred size was saved right before Max crashed. This setting seems to be recalled across DAWs, so instantiating the plugin in Live/Reaper and opening the UI tried to load the invalid window size, which caused the crash.

Thank you for your help.

Hi Nular,

I see. You can manually update the interface layout and size by entering the following code into Terminal. You can copy all 4 at once:

defaults write com.fabfilter.Pro-Q.4 InterfaceHeight -int 570

defaults write com.fabfilter.Pro-Q.4 InterfaceLayout -int 2

defaults write com.fabfilter.Pro-Q.4 InterfaceWidth -int 950

defaults write com.fabfilter.Pro-Q.4 ScalingAdjustments ""

This will reset your settings to the medium size.

Thanks but disabling graphics acceleration allowed me to open the UI and resize it the usual way.