Using nDisplay at 14506x1080 resolution but getting clamped by viewport restrictions.

Hello, I am trying to display a project on a very large display. I have a setup with switchboard and nDisplay running the project. The display’s full resolution is 14506x1080 which exceeds Unreal’s mip limit of 8192.

I tried using overscan to half the resolution and then scale up so it still fills the full 14506x1080 resolution. This did not work and left large black bars which is not ideal.

Any suggestions to circumvent this issue are welcome.