Question

The most recent firmware for the quantum borks the connection to macOS. Typical Persons style.

Im only angry at myself for buying this junk and not going Antelope or UA.  MY quantum and Q4848 have NEVER worked 100%

And presonus threatened me because I was bitchy about..2500 bucks down the drain. Thats why I was thinking of the class action which I still am.

Answer 1

I have the same problem with my 2626.... the last update breaks the macos compatibility. UC sees the device (sometimes it even sees two devices  instead of the only one which is connected :D)  I was able to use my device again by downgrading both UC and firmware.

It sucks when an update breaks something that was previously working :)

I hope they'll acknowledge the issue and push a new (hopefully working) update