Auto space dimension box vanishing

Is anyone else getting this really annoying behavior when using the auto space dimension box.

It suddenly starting happening in the last few days. I select the dimensions to autospace the box I need flickers on for a fraction of a second then just goes blank as you can see in the attachement. My only fix is to turn off solidworks and restart.

If this is a bug (hopefully being squashed if it is) is there any other way to get that box back without having to restart?

Thanks

Steve

SolidworksDrawings And Detailing