I recently purchased the Apollo Lunar Missions, Interactive H-R Diagram, PGC Extension, and GAIA Extension in-app purchases for SS6 Pro on my MacBook Pro, and received a receipt for these purchases from Apple. While the Interactive H-R Diagram in-app downloaded successfully (it shows as "purchased" in the In-App Purchases menu, and I have access to it), there appears to be an issue with the other three apps. They still show the purchase price, as if I haven't purchased them yet, and I don't have access to them. The "Restore Purchases" button doesn't do anything.
Thanks for your help,