Disappeared tab \"Army\" (Stellaris)

Hello. There was a problem - tab Scheduler disappeared bookmark Army. There, in the Scheduler, there is a button to hide menu items - fleets, ships, factions, the environment, etc., her army did not hide and the button flag is set, the army should appear, but they are not. . When this flag is set on the button of the armies , and its removal changes nothing - the button of the army in the scheduler does not appear. The other buttons work normally and hide and show the fleets and ships, and fractions...to Capture the moment why this is happening and failed, when run from a previous saved game where the button Army is still there, watching her, then she disappears arbitrarily. The army is not going away, but without a button to control them is difficult. Maybe a limit in the game the number of armies there? Second question - in the game often appear by themselves blue building ships. Currently stand quietly on the sidelines, on the team so did not react, they can only be eliminated. Ships of my Empire, but I did not build them. What is it??