So, I'm not alone...
I've had the Atom controller for a while and earlier I was able to see both Atom and Studio26C (Audio Interface) in Universal Control.
Since It's been a while since I've actually ran the Universal Control app and checked for firmware upgrades I figured I'd have a check, just to find out that it didn't even show up.
Also the Studio26C, while it shows up, it's no longer working as usual where I could select it, change the audio resolution etc and check for firmware updates.
Now this app does exactly NOTHING!
So, I went through and uninstalled it completely using the Presonus script that comes with the download, removed every trace I could find manually and restarted the machine, tried using different USB cables, tried rebooting with devices connected / disconnected, but still, nothing.
I noticed that even though Universal Control was in fact running, I didn't see the ucdaemon process running, which is the whole hub that connects this together as I've understood it, so I started the process manually (this is on a Mac btw) by running:
$> /Library/Application Support/PreSonus/universalcontrol/ucdaemon.bundle/Contents/MacOS/ucdaemon
And now I can see the output from the process in the Terminal, which seems to register things... kinda.. dunno:
### Warning: UCNET:Started listening on TCP port 50340 (2 sockets)
### Warning: UCNET:Server "PreSonus Hardware Access Service" registration reply received.
### Warning: UCNET:Adding server via UDP discovery 192.168.10.157 : tcp 49161 udp 50895 (alive event)
### Warning: UCNET:Server "Studio 26c/274" (id = "01223961") resolved at host "192.168.10.157", tcp 49161 udp 50895
### Warning: UCNET:Server "ATOM/832" registration reply received.
### Warning: UCNET:Server "Studio 26c/274" registration reply received.
### Warning: UCNET:Server "PreSonus Hardware Access Service" registration reply received.
Doesn't do me any good though, as I still can't see any device in the GUI.