Mouse pointer disappears - Ubuntu 20.04.04

Hi All,
I followed this link below and everything works except mouse pointer disappears but mouse action still works.
To get mouse pointer back I have to power-off and restart.
Mouse pointer disappears when:
1 - on blank screen - power saving (no set to never)
2 - if no screen activity

Anyone have this issue ?

Link: https://www.learningtopi.com/category/sbc/rock5b/

I do running Debian11. It is intermittent so does not happen all that often. Using Logitech mouse/keyboard.

Thanks,
I have a cheap gaming keyboard and mouse from same supplier connected via an Aten KVM switch to the Rock 5 and have tested with and without KVM switch. I use this setup on a stack of rasp pi 4s without any issues.
I’ll test with a logitech and see how it works.