About undo the last move function...

[DRG]

What I do not understand in this case is how a function that has been in place as is for nearly 2 decades suddenly gets this response

I tried to use "undo" button but nothing happened..

From the game guide.....in the tutorial section

The Undo/Cancel button does NOT work if during your move you were fired on, you became immobilised, or you spotted an enemy unit.

.....and "you spotted an enemy unit" conversely means "if you were spotted by an enemy unit"

the ONLY change we have made to that function " lately" was in 2008 we added..

if your vehicle kicks up dust due to movement then you can no longer undo that vehicle's action

So I'm genuinely curious how it is this was unknown to you all this time ??

Don