Screen shot function swithcing itself off

For documentation I use now frequently the screen shot function which can be enabled in setup, display.

However I do not understand why each time I need to use it it is switched off. I did set it up so it is ON. When I switch off the 66i and switch it on again, the function is found off. This happens also when the device go into sleep during expedition mode for example.

I tried to create a new profile, but also here, the setting is not persistent.

Is there a specific reason for this?