First off, SHit! how did i miss this thread... and DLIT, I am so sorry.
I am going to take a WAG (wild-assed guess) about the cause of the crash.
You said that in the transition from left to right the front end just "went away"; without more details it's just a guess, but bikes like the R1 (short wheelbase, little rake, short trail) can do a little "pogo" type thing where when you've popped from full lean to full lean side-to-side the suspension unweights for a second at the top of the transition.... a lot of it has to do with if you are trail braking or on throttle and in that photo, it appears that the direction of travel is slightly downhill which also contributes to the unweighting on the front.
Doesn't take much at racetrack speeds. Rushing even slightly downhill causes the vectors to change NOT in your favor.
Just guessing without more data. But I've lost the front in similar situations on bikes i was familiar with, on roads I "Knew".
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