Raytraced bug - 2/28 WIP

@nathanletwory Using yesterday’s WIP, when I have only perspective viewport showing and I use the perspective viewport title dropdown to select raytraced, then within the first 2 or 3 cycles use the title dropdown arrow to open the viewport menu again, if I simply mouse over (no clicking) the menu the display mode will change to whatever was closest to the spot where I entered the menu with the cursor.

@AlW. Thanks for the report. We are aware of the problem. It is related to the freeze and UI problem reported in other recent threads.

Edit: RayTraced freeze Last WIP