Mint install on Pi4 doesn't load the website

Hi all,
Looks like a nice project. When I use the install script for version 4, the installation seems to be working fine. I can load the control panel on a remote pc, but on the device itself i just se Raspberrian dektop, wallpaper and all. No errors or anything. I've followed recommendations etc. and have remote access etc.
What error could cause this?

Begin with the version 4 install script and reproduce the issue on a Raspberry Pi 4. Compare the device's local display with the remotely accessible control panel, then identify and document the confirmed cause and fix so the website loads locally instead of showing the Raspbian desktop.

Written by the indexing model from the issue text.