I did not receive a shipment of the Eaglemoss 1:8 scale Ghostbusters Ecto-1 last month or this month. I called Customer Service today and was told that stages 87-90 are out-of-stock with no ETA. It turns out I was on a 12 stages-per-shipment schedule and that was holding up the next two issues because the third was unavailable. I have dropped it down to 8 stages-per-shipment, so hopefully I will get stages 79-82 and 83-86 here shortly.
UPDATE Jul 17, 2021: Stages 79-86 have arrived and should be up shortly!