Hi, we currently have a Trouble Report open on Bookworm for which the workaround is disable Wayland.
https://www.nomachine.com/TR10U11031.
However, we’d like to make sure it’s the same issue. Before you try disabling Wayland, could you enable debug and gather some logs from the RPi device? For instructions on how to enable debug and gather the logs, please check the instructions here: https://kb.nomachine.com/DT07S00243. Send them to forum[at]nomachine[dot]com. Please use the title of this topic as the subject of your email. Thanks!