I have a rotated referenced viewport, fairly simple floor plan. Some of the objects are not displaying, mainly rectangles with solid fill that have been added more recently than others. The classes are turned on correctly. When I zoom, the objects flicker on and off. When I print the sheet to pdf, the objects don't print. Vwx 2018 Architect
I have a number of these referenced viewports, on different layers. I suppose if I delete the viewport and recreate it, that will probably fix the problem.