In January of this year, Tether Tools released the Air Direct Wireless Tethering System. Shortly after that, Apple released macOS Catalina to the 10.15.1 version. That iteration disrupted Air Direct, Capture One, Lightroom, and many other applications in the Apple ecosystem.
At the risk of getting extraordinarily technical, Apple introduced platform level changes, introducing System Extensions and a DriverKit with specific functionality related to networking, security and Drivers. While beneficial to device users in the long-term, the change brought industry standard development practices to a sudden halt.
Tether Tools has started working on ways to fix these problems. They are excited to roll out a macOS Catalina Beta program where existing users can download and use a new Air Direct Utility which is compatible with Catalina. In particular, if you are a Capture One or Lightroom user, then joining the Beta program will allow you to use Air Direct with those applications as intended.
Those who would like to join the Beta can do so by visiting the page on the Tether Tools website that talks about macOS Catalina update and its effects. Look for a button at the bottom of that page that enables you to enter the Beta.