Unable to Reset ENG HYD SOV

[FantaSim]

I was messing arround in the flight deck when I decided to check the yellow system ENG HYD SOV, the buttons did work and the SOV's did shut off, but I was unable to depress them again and restore the operational position of the SOV. I ended up having to go into spad.next and manually reset the LVAR, which did work. Either I am doing something wrong, or the restore function of the ENG HYD SOV buttons are not working.