This conversation has been merged. Please reference the main conversation: Lightroom Classic 7.3: Graduated Filter Orientation Problem
Take a horizontal image and place a gradient on the sky from top to bottom. Then save that gradient in a preset. Then apply that same preset to a vertical image. Instead of being a top-down gradient, the gradient will be applied to the side (as in left to right) on the image vertically, completely changing the outcome.
This is a new problem and I have confirmed that in 7.2 it does not exist. In the past versions, grads saved in a preset applied exactly as they were saved. There seems to be a bug in 7.4 changing the behavior and making gradients of little use in presets.