Question

I was pretty disappointed upgrading to the Mac OS Big Sur beta and see that my legacy SL16.0.2 was no longer working with my MacBook Pro. I have since downgraded back to Catalina. But, I really hope Presonus can create a patch to keep this mixer alive on the new MacOS. The last patch for Catalina took almost 6 months! 

Answer 1

Big Sur is not supported as its not even released yet. If you want to use Beta OSX versions then expect things not to work. Use Catalina until we release our Big Sur statement.

Answer 2

Big Sur is out now, and multiple people are not able to get their older mixers to work. Disappointed with Presonus Support here. RM16AI not recognized by Big Sur, and nothing from support.