https://gyazo.com/9bb0a919eb48a2aa77d288e5e4f7af5d
So , A guy asked me and my friends for Help regarding the GIF Above . He was able to Click the Play Button After the Credits Popped Up , We asked him to use Zindex but It didn’t work out , so I tried it myself and found out that Zindex just covers the GUI Below it but We are still able to click the text Button below , is this how Zindex works or is it Broken?
I assume this is because the frame of the credits is not active/selectable. I don’t work with gui’s much, but I think that is the problem.
Still doesn’t seem to work , I tried changing ZindexBehaviour Too
Alright, I have done some research on this, and it appears this glitch has been a thing for about a year or two. There are no ways to fix this besides doing a bunch of checks. Here is a older thread about this.
So its basically a Roblox Studio bug , I was wondering why this didn’t work . Thanks 
, Hope they fix it very soon.