NVRTX 5.1 caustics + Ultraleap = possible?

Hello all,

I was able to install NVRTX 5.1 caustics after a few failed attempts. I am currently trying it out and it works well.

Now I wanted to combine NVRTX 5.1 caustics with an existing project that will be a real-time application with Ultraleap. But opening via NVRTX 5.1 does not list the Ultraleap plugin.
Am I doing something wrong or is this combination not intended at all?