Issue If you choose unevenly spaced objects, Figma doesn’t allow you to enter a numeric figure to evenly space these. It does if the objects are evenly spaced though.
Example Let’s say you have 3 objects on the canvas, each at different distances from each other and you want to set the vertical spacing between each object to 32px. You need to evenly distribute the objects first then then set the 32px spacing.
Solution Cut the need to evenly distribute step by adding horiz and vert spacing inputs fields when unevenly space objects are selected.