The reason why they said the morph fact, is because you have a problem in your structures design. When you put it to Upgrade first, when it finishes upgrading, it just slams the gate into the ground, which if you wanted the upgrade first part to be, you know, upgrade to close. Works terribly. Because when the gate finishes closing, it looks like it was broken. .-.
Best solution is to actually make "stand Upgrade First" look the same as "Stand". That way, the gate looks like it can open and close easily without you having to make a trigger for it.