Asus Strix 980 Ti - my card have problem or its a game bug?

[qwe123]

Hello.Everytime when i left running idle Batman Arkham Knight for overnight for example 10 hours i get this. When i woke up i saw on screen weird lines with raindrops on a ground. When i just restart game then raindrops are normally on a ground ( street ) . So its was something with my card or game bug?
Also i tested Unigine Heaven and 3dmark for 12 hours and no glitches and artifacts.
But in Batman AK after few hours being idle i get this and i am not sure about card. It can be card overheating or game issue?
My card is Asus Strix 980 Ti Oc default. I am using Windows 10 Pro with new drivers.
Here is a screen , i added black arrow to see:

I can replicate the same issue when i left idle that game for few hours. Always the same sympton, no dissapearing raindrops lines. Somebody said to me that is a hardware error. So its a hardware issue or game bug?

 

[qwe123]

Its hard to call that this are artifacts. That are raindrops with line positions.

 

[qwe123]

I dont know if it work. But i know that this raindrops glitch are only when i left idle game for few hours. If i dont idle then wont be happen.


Can somebody left game running for overnight ( without playing ) ?



I run Unigine Heaven and 3dmark 11,13 without glitches and artifacts.

 

[qwe123]

If i minimize game ( clocks gpu going down ) and when i maximize game again ( clocks gpu going up ) there are still the same glitch with raindrops in lines. I must restart game to work properly again.
So i thiink its not related to overheating. What you think?

 

[qwe123]

But minimalizing game wont resolve issue. I must restart game.

 

[qwe123]

what?