Yeah. I referred to the wonder card that is specific to the server (UM creature from UM server, etc), and drafted a list based on datetime-code.
As long as there isn't any caching issues with the mystery gift receiving process, the events should all be rectified.
Here's an image of what they look like (with green representing latest entry)
Possibility of Obtaining the Wrong Card?
As @Sabresite mentioned, if any game were to receive the wrong wonder card (assuming based on caching issue), it would most likely be Pokemon Moon.
Based on the data above, if an error were to occur, it is only applicable to the EU version of Moon, running an ENG (or JPN, KOR, CHT, CHS, since it defaults to receiving an ENG card) .
I would like to point out that EU ENG Ultra Sun also appears to have a chance to receive it, but I think it is unlikely,
since it has had the correct card refresh onto the server 4 times.
Finalized OTs
ENG - 2018 Legends
FRE - Légendes2018
GER - Legenden2018
ITA - Legenden2018
SPA - Leyendas2018
*As usual, GER and ITA entries only apply to EU 3DS.
EU and US cards: same or different?
Checking the checksums, it appears the EU and US cards will be exactly the same.
[a great way to to check the differences, is by card checksum]