This link appears to be broken:
https://docs.unrealengine.com/latest/INT/Engine/Animation/BlendSpaces/index.html
I tried to get there from
by clicking on the ‘blendspaces’ link
It looks like just the capitalization in the link is wrong, ie BlendSpaces with “S”. The link below works fine for me and the only difference is lowercase ‘s’
Also, if you click on this link, there are 2 missing pictures there