Quickly excavating the Grail.

No one has fixed anything. The button condition is: FullMovePoints = CurrentMovePoints The condition is met - the button will activate. Current move points change when the hero moves. Full move points change if the hero's slowest unit is changed or if the hero is given boots/gloves/visits a stable, etc., and other modifiers. But after changing the conditions that affect the Full move points, you need to open the hero's window and rearrange the units - the full move points will be recalculated according to the current situation. The equality must be exact, otherwise it won't work. In the HD mod, you can see the numerical value of the full and current move points.