How do ensure that the game score count is fixed?

yea is this a big project or is it like a small project using 50 - events no js and 2 - layers?

or is it one of the big ones using multiple layers and so many evenst?

Yes Radkampfwagen is right. If you use several events sheet, what I believe with "pointsLvl3" and "Player deaths3", you must declare just one time your global variables just in one sheet and delete the others. And you can too use the same global variables for all your levels, its prevent error and its more clear.

Yea first look for stuff in your ES that might trigger not resetting the score like if another part of an ES might trigger the score to not reset so that may over-word this code.

also is the only score you have called "pointsLvl3"?

Have you mistaken the text that shows another score?

Good news! The issue was fixed, but there was more steps to it.

What so this was only because of a bug?

Not a false line of coding?