Census problem: TypeError: W.ckmeans(...)[4] is undefined

[sentry]

This means there is no fifth class of our 5-class symbology for census data. My guess is that if we're only see this error once in Sentry, maybe user clicked a census dropdown item (I'm guessing tracts because AT takes ages to bring the 2k records in 100 rows at a time) before it was ready.

Still, it shouldn't break the world, so if we see this again then make sure to disable the dropdown until tracts are done loading. I want to say I'm not pre-loading PUMA because it's such a small number of rows, so tracts would be the focus for a first line of defense.

Sentry Issue: LANGUAGE-MAPPING-4M

TypeError: W.ckmeans(...)[4] is undefined
  at He/m</< (/static/js/main.d1147884.chunk.js:1:119514)
  at is (/static/js/4.6b54c56f.chunk.js:2:2130476)
  at gl (/static/js/4.6b54c56f.chunk.js:2:2149617)
  at e.unstable_runWithPriority (/static/js/4.6b54c56f.chunk.js:2:2167935)
  at qi (/static/js/4.6b54c56f.chunk.js:2:2092063)
...
(10 additional frame(s) were not displayed)