Right click on unit (horseman?) crash

[V. Soma]

It happens accidentally, har to repeat it, happend twice, so I report it:

I click on a horseman (is this specififc to it? I don't know) to give move order,
and I hear a rapid "ta-ta-ta-ta-ta" sound, and game crashes do desktop...

 

[Petek]

Please provide a save game that illustrates the problem. Thanks!