For several weeks now, my skins simply won't load. On the start menu, one of the base Alex or Steve skin's flashes for a moment then there is no character model there. If I go to dressing room, all of the character slots are blank, and nothing is clickable to change it. In game it gives me either Alex or Steve. I would use a custom skin and then when it wasn't available, official skin pack skins. I tried reinstalling the game client completely, which I saw suggested online, and all that did was cause me to lose my worlds. On a fresh reinstall, it showed my skins with the exception of the custom one. The game shortly crashed and when I reopened I'm back at square one with no skins. 
Also I have noticed that most of the time when I can't click the dressing room or it shows blank, if I click on market place nothing happens. So I can't get on market place nor will any of my skins load. 
And I am connected with around 100 mbps download and 20 mbps upload.