Did anyone take the GMAT on Nov. 22nd?

Iam sorry to read about your experience. It is really weird....that your score in quant dropped in such a absymal way. It does happen, not so rarely, in verbal, but drop of this magnitude in quant is simply unheard of.
Stories like this make my belief even more stronger that Computer adaptive format is not without some glaring loopholes.
Write to ETS about it and request them to check your scoring. They do that if requested in such rare circumstances. But , having said that, Iam afraid that chances of score cancellation are very dim.
Looking harshly at your case, I would think that you might have been very careless/overconfident in first few questions in quant, owing to your earlier success in that section. As I always say, when we take the test second time, we subconsciously , but mistakenly, assume that if we did well in one section in previous attempt..we will repeat the performance automatically.
I would not worry much about quant section because you did score 86%ile in first attempt and you can never achiieve that level by pure luck. No doubt that your second score is a fluke..but I would ask u to be very careful taking the test next time and keep practising quant. to maintain the momentum.
But you need to go long way in verbal.. even if you repeat your first quant performance next time, you need atleast 60-70%ile in verbal to get a decent score.
Good luck.