dspMixFX_UR824 crashing on load

Hi folks,

I’m having trouble with the dspMixFX_UR824 app.
I’m on macos 10.15, on a 2012 cheesegrater macpro.

The thing used to work, and now it’s borked. It crashes on load; I’m getting this in terminal:

This application failed to start because it could not find or load the Qt platform plugin “cocoa”
in “”.

The interface works fine, but I can’t get into the software.
I run Cubase, and the ‘hardware’ rack isn’t showing up either. All I want to be able to do is to be able to turn of the dreaded direct monitoring.

Google has failed me. Any and all help very much appreciated!

Cheers and many thanks

Matt

What version of Cubase are you running? Some of the stuff you are describing (like the missing hardware rack) makes it sound like the Cubase you are using may be in the unsupported realm. As far as I can tell Cubase 11 is the last officially supported version on Catalina. Did you update Cubase at some point beyond version 11?