map refreshes multiple times after rail movement

[randallw]

I see this behavior every now and then; I move a unit by rail, with the map zoomed to one or two levels less than zoom out. After the unit is placed to it's new location, the map sort of flashes, showing all units and terrain, with no unit showing as a selected unit, then the screen briefly shows potential movement locations for the unit, by rail, then it repeats this flashing once, twice, maybe three more times, before settling down to showing the unit and the rail locations.

[Redmarkus5]

I see it too but have been ignoring it as a 'minor issue'. It' becoming more annoying with time.

The number of screen refreshes seems to be linked to the number of units moved at the same time - move a stack of three and the screen flashes at least 3 times.