2D Mouse doesn't do anything.

[titaniumsloth]

Hi, everyone. I'm trying to set this SpaceMouse Enterprise up for use in Spline, which has an option-click drag for orbit, and scroll wheel soon. But when I map any axis to and 2D mouse function at all (even just a click), I get nothing in Spline or any other generic app. The axes work perfectly in Fusion, so the hardware is fine. Button mapping for the device buttons works great. Any suggestions? Thanks!