Display unresponsive after printing

Hi all,
I’m running the latest K1 Max firmware compatible with the CFS upgrade. I am often experiencing this recurring issue:

After a print finishes, I get the usual “Print Complete” message. But when I press OK, the screen dims and becomes completely unresponsive to touch. The only way to recover is to power cycle the printer.

I’m using Creality Print as my slicer.

Has anyone else with the CFS firmware experienced this?
Is it a known bug or a hardware-related glitch?

Thanks for any insight!

Felice