Tedder hydraulics not working suddenly

I have an Agco 4 basket tedder I just bought used last fall. It's vertical hydraulic fold. The hydraulics have always worked when I've used it before but today, I hooked up the hydraulics to drop the arms and nothing. I can see the lines moving under pressure but the cylinders aren't moving.

 

I tried reversing the lines going into the remotes but got nothing there either.

 

I know the hydraulics on my tractor are fine because I just had the mower hooked up before that.

 

Any ideas?

Tedder hydraulics not working suddenly