I recently purchased a realms + subscription and was given access to hundreds of worlds.  I cannot access any of them.  I have to "download" them world before I can create it then upload it to realms.  Every world/texture pack/player skin that I have clicked "download" for gets a downloading bar, but never actually downloads and I can not access it on any device.  

One of my deciding factors in getting the realms + subscription was going to be having access to all of these worlds with my kids.  If I cannot access them, then I will likely not continue the subscription.

I have tried restarting the program and restarting the computer.  There appears to be no option in Minecraft to cancel the download and try again.  

Please help as soon as possible.