Backlight bleed and some other questions after new screen installation

For some background, I have fixed androids screens and old iPhones in the past but this is my first “newish” iPhone screen replacement.

The replacement screen assembly was from Amazon, most likely a Chinese 3rd party supplier. I have noticed that I everything works great but there is some backlight bleed on the top of the screen where the microphone and faceID sensors are. I am wondering if I have tightened the screw too tight or if one of the components is pressing on the screen. I also noticed that if I don’t open the screen for longer than an hour, it opens up black. After more power ups though, the screen opens fine with no issues until it lays dormant again for 1 hr+. Is that an issue with the screen or a flex cable connection?

Also if I were to reopen the screen again, would the water proofing from the new adhesive that I installed be compromised and need another replacement?

Any insight would be greatly appreciated!