What is difference between - I quit aoe4, and Viper quit aoe4? Guys, this game is just broken. Dont cry about it. If developers not fix this soon, the game will die. Doesnt matter who left this game. Its not you problem 
the developers have enough text to understand what they have to fix 
don’t be unnecessarily upset PS: here is all problems Important topics list (with broken things that will never be fixed)