Hi rick0!
Good to know you managed to solve the first issue! :D As for the second one, I believe I’ve fixed it in the new version 1.0.4 that I uploaded to the package page.
Basically, as you mentioned, the pipeline didn’t support UI Masking because it cleared the stencil buffer, but I think that was implemented specifically for WebGL.
In this new version I added the option “Preserve Stencil Before UI Rendering” in the Camera Volume, and now it should work as expected. In my tests I was able to reproduce the effect and the UI Masking worked properly. Can you check if it solves the issue for you?
Check this print:
Thanks again for the feedback!