Welcome.
You've created your thread in the forum dedicated to
US-428, US-224, US-122, and US-144 USB Audio/MIDI Computer Interface & Control Surface; and the US-2400 DAW fader controller PC audio interface.
You're much more likely to find a resolution to your issue if you go to the Model 24/16/12 forum (blue link in the following paragraph).
Since I don't own one of these units, all I can say is go to the sticky threads in the shaded area at the top of the first page of the
Model 24/16/12 forum, where you'll find a number of instructional videos on interfacing with a DAW.
There's also discussion of Model 24/16/12 USB interface in the "Tips & Tricks" sticky thread.
The first post in each sticky thread has an index. We created the sticky threads specifically to help guide first time users and new members, so we hope you'll take advantage of them often.
If you don't find the answer in the stickies, the "New Members" sticky thread in the Model 24/16/12 forum tells how you can search the forum for answers to common questions such as yours that may have been asked and answered in a prior thread of the Model 24/16/12 forum.
If you're still stuck after that, then start a thread in that forum telling us what you've tried, where you're stuck, and we'll try to get you unstuck.