Mongol - Selecting Multiple Military Buildings Will Not Show Option to create Ovoo 2x units

Scenario: Multiple stables are selected.2 stables are off the ovoo, 1 is on. Selecting them Will Not Show Option to create Ovoo 2x units unless the Ovoo building is selected first when selecting the group. The 2x option should intuitively know that an ovoo building is a part of the group, whether it was selected first or not.