Your Mac and MacOS version is …?
For what it's worth, I'm using the HX Stomp almost daily with two "antique" MacBook Pros, both running El Capitan (for a few reasons). One is a MBP 2008, the other the mid-2012 model. And I'm working a lot with Logic 10.3.3, using the Stomp as an interface for bass and guitar, even in combination with two "antique" FireWire interfaces (yep, they are one of the reasons for running El Capitan!) as an Aggregate Device.
The Helix driver that works best with El Capitan is v1.0.7. Newer drivers – even though some were still tagged as "compatible" – had problems.
The mid-2012 MBP can also boot Catalina, there I have installed the latest Helix driver I think. But I rarely boot it from Catalina because it breaks compatibility with other hardware and software, so I don't even know how it behaves.
Ah, and yes, I do all my audio recording and editing strictly @ 44.1 kHz
Your mileage may vary. :)