RPR 2.0.22 / Blender 2.80.49 / Windows 10 / Vega FE + WX9100 / CPU 2990WX
Experiencing viewport geometry corruption even with completely quadrilateral geometry but only in isometric views.
Perspective (correct render)
Isometric
The geometry has clean, correct normals (the red plane is intentionally wrong for comparison)
Sure thing, please see attached.
Simply swapping between perspective and isometric in preview render should reveal the issue. If you need anything else, please let me know 
