Ghosted view in layout detail

when i change my layout view to a ghosted view, the geometry disappears… any ideas?

Display options perhaps

no. but i did check that. I’ve had this issue in the past. it’s actually something to do with blocks.

and it doesn’t always work, but, when I explode the block the geometry comes back.

which works for now but this really destroys my process with blocks and drawings, revisions etc

It might be graphics driver related.
This is just a “maybe”, but worth checking.
In your Panels pull-down, open the Notifications panel.
Is there a message suggesting you update your display drivers?