I am trying to improve the quality of my header/feature image for the blog page of my site but it is coming out blurry. The dimensions are 1280×426 but it’s not as crisp as I would like it to be. I used the same dimensions on the other pages and their isn’t an issue.
In order to set the feature image for this page I have to go into the ‘customize’ under ‘appearance.’ The other pages on my site can be changed by uploading a new feature image when editing the page. Could this be the issue?