Metal Gear Solid Peace Walker cant get zeke customization tab in the mother base menu

[Comrade246]

After I destroyed all AI battles except the very last zeke battle.I still didnt get the zeke customization tab in the mother base menu.I completed the 6 main find zadornov but for the seventh mission I need ZEKE all prepared.The version is PPSSPP 1.5.4.Here's a
link screenshot - file:///C:/Users/Admin/Pictures/image.PNG