There's a small update of Dorico out today; mostly full of minor fixes and improvements to the recent 'large' 4.1 update.
But most of interest is something that addresses a long-standing limitation: Previously, manual edits to staff spacing would be undone if pages were manually inserted before them. This is now fixed: When inserting pages into an existing layout, staff spacing adjustments on subsequent pages that are shifted as a result of the insertion are now retained where possible.
(Normally, 'inserting' a page should not be necessary, as Dorico automatically creates pages as required. You would only do this for something like prelims and title pages; adding a blank page between sections, etc.)