I have problem with exposure

When I’m on the viewport, the exposure works fine
But when I hit the play, auto exposure does not work. But manual exposure works, but I want auto exposure . I import my project in blank game

add a post processing volume, in there you can set exposure.

if you see the movie i have post pross

ahh
didn’t see the movie at first
hmm
Idk, you press play and everything goes dark
it doesn’t look right
but
I do not have a solution.