GB2488HSU - black spot sometimes on a screen.

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Joined
22 Mar 2017
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1,241
Location
Poland
Hi.

Just bought this monitor IIYAMA GB244HSU 144Hz feels absolutely awesome, compared to 60Hz. But I have question about this monitor.



I noticing this dark spot ( i added arrow ). It's only noticeable on light blue,black/gray colors. And its totally random. Sometimes it is on screen , sometimes not. Any ideas what can it be? Thx

Screen:
photo-3.jpg




6353b472_aaaaa.jpeg



For me its not dead/stuck pixel. Its not looking like pixel. Something like smudge but under screen?
The weird thing is that ,sometimes when i turn on monitor it dissapear, sometimes i can see it.
Any ideas what is this? :) Thanks.
 
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