There seems to be an issue with using a Scale Box and a Text Box with wrapping turned on. Everything in the UI scales absolutely fine except for the line height which seems to over compensate. So if the window is 50% original scale then the line height will go down to 30% or so. If you fullscreen so the window is 200% the original then the line height will be around 300% instead of the 200% it should be like the rest of the UI. The frustrating part is that everything else seems to scale fine including the font size and still wraps at the same point. It just needlessly over-compensates the height:
I’ve seen reports of similar bugs dating back to 2016 but the height scaling seemed to be in error in the wrong direction (scaling window smaller made bigger line height rather than the other way around it is now.)
Does anybody have a fix for this? If not does anybody know how to maintain a dogmatic aspect ratio in UMG without wrapping everything in a Scale Box?