Quick Curve Blend Not Working

Can someone try to see if Quick Blend Curve is working for them? I select the two ends of the curves but noting happens.

the command _Blend ?

it’s working for me with build 515.

is it not working for you on a particular set of curves or does it not work in any situation?

Don’t know what the problem was. It didn’t work on a set of curve i had, discarded them and started again and all seems fine now?