I have discovered a bug in 5.1 version, that is not listed as fixed in this list. Yesterday I discovered it on Android and today I confirmed it on Windows version.Effect: Using special abilities by any unit.Required: A unit with a special ability that has a menu (X-COM Files "Attack Dog", XPirates "Bug"), any other unit.How to replicate: Select the psionic unit. Move the map so, that the special ability icon is over the unit you want to use it. Click the special ability icon. The menu for using the ability appears and the unit under the icon is selected. Use one of the abilities from the menu. The newly selected unit uses it with all that means. (The selected unit is pays the cost of the ability with correct percentages, the selecteded unit's stats are used and trained.) It only happens with abilities that drop menus. If the ability does not have a menu, such as with X-COM Files "Hybrid", the unit below the icon is not selected.