Well, I can confirm the effect. Look at sun in periscope, no glare, jump to nav map, alt-tab out, alt-tab back, back to periscope...yup, glare. For about a full 2 seconds, then it fades out to nothing again.
Weird.
Unfortunately, can't test the 2d/3d clock question, as the Cat 7.3s have borked my ability to overclock.
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