I just dowloaded 5.4 (and upgraded from Sierra to High Sierra in order to do so), and all my previous and new files now open with unequal window sizes in 4-view. Instead of 4 equal sized viewports, my Perspective view is very large and the others much smaller with strange aspect ratios. When I adjust them to equal sizes and save the file, it opens with unequal viewports again. (Also I’ve been meaning to ask if the Box windows location can be saved when closing as well, but that’s minor.) But I really need to open my previous and new files with equal sized viewport windows. Any input would be most appreciated. Thank you (and keep up the great work - MacRhino rocks!
(Note: I just noticed if you save a file with a single viewport full screen (for example Perspective view), the file opens properly with the single view and when you select 4-view, the windows are now equal sizes. But then saving the file in 4-view results in the file opening with the strange aspect ratios again. It seems that there is a bug when saving any file with 4 views. I hope this can be addressed soon. Thanks!)