Experiment Page returning 502 status code

[davidsmejia]

I was looking at google indexing performance and while we are doing pretty well this is an experiment that is giving a 502 status code when visiting the page directly. The page does load if you navigate to it via search results

SRP150473

Next Step:
Determine the difference between search result -> exp page and loading on the exp page directly.
This experiment is also unprocessed so that might be a clue as to why this is occurring.