Mouse/Keyboard not working on Ubuntu
Newer versions of Ubuntu default to using Wayland instead of Xorg. Unfortunately, at the moment, Unified Remote does not work well with Wayland since it handles input simulation permissions differently.
For now, the best workaround is to disable Wayland in Ubuntu. This will make mouse and keyboard work immediately.
To disable wayland, follow the steps in this guide:
https://linuxconfig.org/how-to-enable-disable-wayland-on-ubuntu-22-04-desktop