Question Monitor will not hold resolution

Paradox1313

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Feb 23, 2016
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I have three monitors

A Samsung at 3440 x 1440
and two identical HP monitors HPR2440w.
Both of the HPs are in portrait mode but only one of them is working correctly.

One is 1200 x 1920 this one is fine but the other one will not set to this resolution.

The one with the issue is sent to 768 x 1024 and for some bizarre reason that is the (Recommended)
I try to change it but it won't hold any other resolution unless I go down the list not up and each time it fails to set the resolution it jumps in position on my display set up.
It should be on the far left but it is jumping into the middle between the Samsung and the other HP.

All monitors are connected with Displayport to a 1080 Ti and i have swapped the cables around so I know its not the cable or the port.
I am running Windows 10 Pro Version 1803

I have no idea what is going on here.