Properly crediting cover songs on the auto-generated label/back cover of vinyl

Hi all, newcomer here.

I am planning on releasing an album of cover songs through elasticStage. I have thoroughly read through the covers policy so I'm all set on that. However, what I am confused about is how/why (not)/if the original authors/publishers that you enter into the metadata are properly credited on the auto-generated back covers and labels of the vinyl record. The 3D preview does not seem to display said credits. I don't really feel like making a whole new back cover/label design, and find it strange why it's not displaying like I'd think it should in the preview. Could anyone be able to shed some light on what's real? Do the authors/publishers show up on the final product but just not the 3D rendering?