I just updated core from 8.2.4 to 8.2.5 and now I am getting this error in my console which is causing some other JS items not to work
Uncaught TypeError: $(...).find(...).once is not a function at Object.attach (eval at globalEval (jquery.min.js?v=2.2.3:2), <anonymous>:156:44) at Object.Drupal.attachBehaviors (drupal.js?v=8.2.5:168) at insert (ajax.js?v=8.2.5:1084) at Drupal.AjaxCommands.loadEditorsAjax.commands.insert (quickedit.js?v=8.2.5:523) at Drupal.Ajax.success (ajax.js?ojj3xe:155) at Object.success (ajax.js?v=8.2.5:505) at i (jquery.min.js?v=2.2.3:2) at Object.fireWith [as resolveWith] (jquery.min.js?v=2.2.3:2) at z (jquery.min.js?v=2.2.3:4) at XMLHttpRequest.<anonymous> (jquery.min.js?v=2.2.3:4)
Drupal 8.2.4 was using jquery 2.2.3 and so is drupal 8.2.5 so I am not sure what is going on here.
Any ideas? I tried updating jquery to 3.0.0 but that didn't work. Same error.