Null pointer exception when retrieving card multiIds

[Omabytes]

Below error in console when attempting to save a set. Loading bar sticks halfway.

Exception in thread "Thread-4" java.lang.NullPointerException
at forohfor.scryfall.api.Card.(Card.java:73)
at forohfor.scryfall.api.MTGCardQuery.getCardsFromURI(MTGCardQuery.java:142)
at forohfor.scryfall.api.MTGCardQuery.search(MTGCardQuery.java:67)
at forohfor.scryfall.api.MTGCardQuery.toCardList(MTGCardQuery.java:49)
at FileOperations.getMultiIds(FileOperations.java:218)
at FileOperations.decklistToIds(FileOperations.java:275)
at MTGCustomCardCam$SetMakeThread.doSetMake(MTGCustomCardCam.java:207)
at MTGCustomCardCam$SetMakeThread.run(MTGCustomCardCam.java:188)

[Omabytes]

All other buttons on the UI work despite the loading bar being stuck.