[Bug] Strange Bug drawing Lines on one of two devices

[MrZucchinibrot]

Hey,

I have a strange bug on my 2D game engine. Starting the game everything is ok. When I open the Inventory (a view Images) the lines are disappearing. Yesterday I found out that it is only on my Home-PC not on my Laptop. Could this be a bug of lwjgl instead of my own code?

What informations should I share here? I think just sending all of my code wouldn't help that much. And I have no idea what could cause it. I will attach a picture from my pc an from my laptop.

Thank you in advance,
David

[MrZucchinibrot]

I've got a Server internal Error when attaching the images. So here with links.

Laptop without the bug:
https://nextcloud.sessner.de/index.php/s/kD8xg4eWH7CsqYp

PC with the bug:
https://nextcloud.sessner.de/index.php/s/sYMJg6xmj9bw9aR