You can fix it by replacing jQuery .live() functions by .on() function in those files :
– edit-tags.js
– media-upload-popup.js
3.6 includes jQuery 1.10.2 so .live() have been removed.
edit-tags.js:3
$( '#wpbody' ).on( 'click', '.taxonomy-image-control a', function () {
edit-tags.js:9
$( '#wpbody' ).on( 'click', '.taxonomy-image-control .remove', function () {
media-upload-popup.js:42
$( '.taxonomy-images-modal .remove-association' ).on( 'click', function () {
media-upload-popup.js:75
$( '.taxonomy-images-modal .create-association' ).on( 'click', function () {
It appears that Twitter’s API has rate limit and returns an error 400 :
Respone codes : http://apiwiki.twitter.com/HTTP-Response-Codes-and-Errors
Rate limiting : http://apiwiki.twitter.com/Rate-limiting
This limit is IP based.
On mutualized hosting, default rate limit is easily reached in few minutes.
On mutualized hosting, ideal cache duration is 3600 seconds…