Display Moremeaning that it if NPC has 7 cards, you're rolling for 7 card separately in order, so getting no card is quite unlucky. Also, player droprate is working correctly for chests just like NPCs, as the "player" is the one who kills the chest.
you can check our parties. chest of b2 has very often no card in it
And rolling in order would also mean that card #7 is very very rare one o.o
I hope you will change soon something for multiple cards in a single chest
Greetings
Hello
System was designed long before some Awakened instances started to have 4-5 cards+ in one single loot, and previous was making it even rarer as it would only roll one single card from list. However, as mentioned here, there will be further changes to how monster cards drop in the near(ish) future, including making it possible to obtain multiple cards from same loot when reaching droprate milestones.
Greetings