I have noticed a strange glitch using the Rendered view mode when I have objects with custom materials assigned:
When I try and click and drag to select multiple objects, the viewport flashes between zoom levels.
When the object is selected and I click on the background to deselect it, the viewport jumps zoom levels. This also happens when I click to select the object in the first place, but less consistently.
I have uploaded a video to demonstrate the issue: https://vimeo.com/126111646
The issue was not evident in version 5A766w, but is evident in versions 5A783w and 5A794w.
I have uploaded the example 3dm file for others to replicate. ExampleRenderGlitch.3dm (191.9 KB)
Please let me know if this is only happening for me, or others can replicate this glitch.