Dimensions, texts and graphics randomly showing in layout

I 'm experiencing some issues with graphic elements in layout in Rhino 6.4.18130.19341, 10/05/2018

Everything that is drawed outside the detail views randomly appears and disappears.

I’m attaching screenshots to explain:

I switched on all the layers which were previously off and actually affected the display.
Dimensions, texts and lines came back but only to go back to the previous random display behaviour a few zoom in and outs later.
I was able to make the graphics display again double clicking to activate a detail view and the double clicking again, but also this worked for a while and then no more.

Thank you for your help

A little update, when I switch the detail windows’ layer off, the graphics reappear.

Thank you!