Board Thread:Support Requests - Getting Technical/@comment-12198205-20150422062711/@comment-1398253-20150423003855

As for your actual problem... User_blog:DaNASCAT/Technical_Update:_April_22,_2015

An issue preventing some community backgrounds from caching correctly was recently fixed - this should result in faster pageloads, as less downloading will be required. I wonder if that caused it.