From what I can recall, plate flatness is one aspect. When a printer can produce 0.025 mm resolution, a divot in the plate or a minor (to a filament printer) warp will cause print failure. Bed leveling is another concern.As already noted, temperature control is important too. I think one user had a problem related to the bed zero location being too far down, compressing the silicone or the supervat so much that all the resin was squeezed out in some locations. From what I've read, none of these failures can be attributed to software.