I just got the update installed, and all looks like things are working as expected.
It has been one hell of a journey over the last years trying to get Arturia to pay attention to the Matrixbrute. Thankfully, it would seem we finally have an instrument which functions as it was intended to when released.
I appreciate you coming through Arturia. That being said, this will definitely be the last time I spend money on your products. The Matrixbrute is a beautiful synthesizer. The respect and reverence it deserves from you as an instrument and tool stopped with the marketing budget allocated. I felt pretty disrespected as a purchaser of your equipment watching you release new products and firmware updates to equipment newer than the Matrixbrute for years, while the Matrixbrute sat with intolerable faults that could easily be repaired with an ounce of attention given.
So, thank you for the Matrixbrute and goodbye!