You do autostart scripting to make your case work, right? If my guisettings.xml don't work, deactivate the autostart scripting for a test run.
I don't use that script any more.
It didn't always work, it was intermittent in regards to the power led not always working as it should.
I wrote my own script for more normal behaviour.
I use gpiozero from the raspberry pi tools from the le repository.
But I do have to still add a line to the autostart.sh to run the python script.
Ill give this a try when I have some free time tomorrow.