Yet another glitch?

I am experiencing this phenomenon from time to time and it's really annoying. When I want t scale an object, proportionally or proportionally, when I change the size, the scaled  object becomes something other than what I want it to be. For example: I have a rectangle that is 54" x 414". I need it to be 55.25" x 414" but when I change the size from 54" to 55.25" the object changes to 1.4" x 14.5".  It won't work correctly unless i restart the program. Like WTF?