Error with stockpiles

Summary: Stockpile giving odd error, sometimes causing UI to reload. Does not happen every time, but happens 5-10% of the time. Does not seem to have much other effect than generating error notice.

Steps to reproduce:
Same error from multiple instances

  1. Placing stockpile
  2. clicking on stockpile
  3. removing stockpile

Expected Results:
No error
Actual Results:
Just generates a nuisance error
I default to no items instead of all items.
release-831 (x64)
Uncaught TypeError: Cannot read property ‘show’ of undefined
TypeError: Cannot read property ‘show’ of undefined
at n._updateTabs (http://radiant/stonehearth/ui/game/modes/zones_mode/stockpile/stockpile.js:221:26)
at w (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:23160)
at m (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:4:21008)
at b (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:13753)
at a (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:12519)
at h (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:13415)
at a (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:12507)
at y (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:5:17298)
at n.set (http://radiant/stonehearth/ui/root/js/libs/ember-1.8.1.min.js:8:25617)
at Object. (http://radiant/stonehearth/ui/root/js/stonehearth/view.js:128:21)

Version Number and Mods in use:
Latest version, just got builder update. No mods.
System Information: