[xwiki-users] WYSIWYG editor not loading after upgrade to 8.2.1

I upgraded from 8.1 to 8.2.1 this afternoon and the WYSIWYG editor just spins and never loads. I ran into this issue earlier and it was an issue using NGINX as an SSL reverse proxy which was resolved by changing the NGINX config (http://lists.xwiki.org/pipermail/users/2016-July/033360.html). The NGINX config wasn't changed during the upgrade so this seems to be something else. I've checked the logs and nothing stands out as being related. I do get this in my JavaScript console: [Autosave feature] Required class missing: XWiki.actionButtons.AjaxSaveAndContinue require.min.js?r=1:34 GET https://wiki.sprague.local/webjars/wiki%3Axwiki/xwiki-platform-tree-webjar/… g.load @ require.min.js?r=1:34 load @ require.min.js?r=1:29 load @ require.min.js?r=1:17 fetch @ require.min.js?r=1:17 check @ require.min.js?r=1:17 enable @ require.min.js?r=1:23 enable @ require.min.js?r=1:27 (anonymous function) @ require.min.js?r=1:22 (anonymous function) @ require.min.js?r=1:7 y @ require.min.js?r=1:6 enable @ require.min.js?r=1:21 init @ require.min.js?r=1:16 (anonymous function) @ require.min.js?r=1:26 require.min.js?r=1:7 Uncaught Error: Script error for "/webjars/wiki%3Axwiki/xwiki-platform-tree-webjar/8.1/require-config.min.js?evaluate=true" http://requirejs.org/docs/errors.html#scripterror F @ require.min.js?r=1:7 onScriptError @ require.min.js?r=1:30 Is this a known issue or are there any recommendations for resolving this? Thanks, Jared