UE4 randomly changing viewport resolution

I typically use PIE to launch in a new window, and change to 1440p, but UE4 always randomly adjusts it to some other size and changes over time, I’m not resizing the window or anything. Any ideas why? Seems like it could be a bug, I’m not sure

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Hello. I thought I was the only one! Did you find any solution?

Same here! It started happening with me after I’ve got 4k screen

I started experiencing this issue when I moved from 4.24 to 4.27. For me, ticking “Always center first viewport window to screen” in Editor Preferences, helped.

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I am having the same issue. I am wondering if it could be because I have set my windows scalling to 125% for this monitor. I would like more viewport options. So when I launch many of them (Multiplayer testing), they position automatically in a grid.