Questions and discussion for this lecture live here. Fire away by hitting Reply below 
Although all the restraints have been selected the collection shows for ux = 0 instead ux =1:
The button Ux is selected → True and thus should have resulted in “1” … right?
It might be that restarting Blender solves the issue …
Yes @Peter that’s correct, should all be 1.
I spot and fix this at 07:00 in lecture 56.
Thanks for flagging.
Seán