I really like what you did to Layout on 2018. Now, images and vectors from an hybrid viewport don’t have that slight misalignement that used to happen on nonsquare+large scale viewports.
However, I feel that this change required to do this might have brought in a new issue and the bigger a viewport the lower the quality of it’s raster output. This lower quality is consistent on within Layout and DWG or PDF exports.
Let me tell you that I prefer things as they are right now, but it’s very annoying to have to split viewports in order to have higher quality on raster images nowadays.
I hope you can figure what’s happening and I hope it will be an easy fix.
Thanks and happy new year!