I did got some Wayfinders these days and ascended her into Mythic, the only weird thing i saw about the cute foxy was that her picture appeared on the left of my Gold chest’s tab while i was using keys to get Suncrest troops.
Unfortunely i don’t have a screenshot as a proof, but maybe it could be related with the (potential) issue?
I mean, somehow the card info is misplaced on the database and such… Maybe she could be on the list of gold chests but would never drop as there could be limits of rarity on the pool of cards for each chest. Just a theory…