1)
http://prntscr.com/3ripgv (BUG AAA - Step 1 - Opening window)
2)
http://prntscr.com/3ripv1 (BUG AAA - Step 2 - Scrolled down and choosing desired armies)
3)
http://prntscr.com/3riqdv (BUG AAA - Step 3 - Clicked Assemble (see result, not one unit is assembled, but all are unselected, and "Army is sent." message is displayed))
4)
http://prntscr.com/3riteq (BUG AAA - Step 4 - Activating armies again)
5)
http://prntscr.com/3rirnu (BUG AAA - Step 5 - Click assemble again (sometimes it takes many rounds before you can assemble all desired armies, f.e it takse some armies and leaves other behind, then you must select again not sent armies, as many times that all can be assembled.))