Buttons have to be clicked 2 times inside Hamburger menu

The buttons I have inside my hamburger menu don’t work with one click, I have to click 2 times.

What I’ve found:
There is a nav overlay that blocks my buttons and after the first click, it goes away.
It seems the background color caused this problem.

I’ve spent 3 hours to solve this problem, I changed many things… but I couldn’t solve it.

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