After runnig ./install.sh . RPI UI mode disable and RPI boot to terminal mode

[FTBSystem]

Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm

RaspberryPi 4B

After running :

sudo apt update
sudo apt install --no-install-recommends raspberrypi-ui-mods
sudo dpkg-reconfigure lightdm

GUI got back but no background and all icon missing :(
Also the original RPI theme gone :(

[barf]

Yes the UI should be disabled. I'm not sure it is possible to use HDMI while the GPCLK0 is working at these frequencies.