That would not be an issue at all. The only issue with reviews is when overlays are rejected, because once they’re rejected, you cannot see them (because they show up blank in your previews). Since yours is still in review, that is definitely not a problem.
Unlikely. If they’re appearing fine in your overlay catalog, you don’t have to worry about their upload.
As Winter said, it’d be easier to see a ss of your script. We might be able to spot an error somewhere or edit your script for you to make it work.