Fetch-as + Render returns pages as expected. Viewing pages' cache text-only and source code also work fine.
When I view the rendered version of any page's cache, I get a page that stalls mid-load.
site: command https://superbalist.com/browse/women/bottoms
When you click on the cache from the little drop-down arrow you get hijacked and fwd'd to an internal search URL which 404s.
However, when you directy go to the cache, by entering this into your browswer:
The full version of the cache shows the half-rendered page.
I can see significant negative effects on rankings and this is the only thing I can see that's out of place.