It happens on any hub (eg. techgeeks.geekgalaxy.com:1411, dc.czone.ro:411) and also when I go in the public list page.
My share is 14.8GB, I tried to start one hub at a time, upload slots 5, slot ratio 2, small upload slots 5.
I have a good connection and the ping time is good - 42ms.
Don't know what else to tell you.