[ANYONE ELSE HAVING THIS ISSUE?] Dungeon Mark Redemtion bug

Platform, device and operation system
Android, Samsung Galazy NOTE 10 5G, Nougat

**After clearing some dungeons with a party I went to redeem the dungeon mark cards for a chest. The game showed I had enough to purchase I selected purchase then a pop up said you do not have enough to purchase. The game freezes and I have to shut it down and restart. Additionally, when I go back in several of my previous dungeon mark cards are missing or game completely **

How often does this happen? It happens everytime I go from the party to the shop and attempt to purchase the chests. So far it has happened to me twice. The second time I snagged a screenshot.
When did it begin happening? The first time I attempted to purchase one after running the dungeon with a party

*Is this a once-off issue or has it been a consistent issue? So far consistently. Does it only happen in specific circumstances? Yes, it only happens if I have obtained dungeon mark cards and then go directly to the shop, if I exit the game and come back in I do not have this problem. *

Steps to make it happen again
Please detail the steps taken to trigger this bug. The more detailed the breakdown, the easier it is for us to test in-house. Run the dungeon with a party, after obtaining an adequate amount of dungeon mark cards immediately head to the shop and select a chest to purchase, this is when I get the insuffient purchase materials and the game freezes, once you get back in after abruptly owing the game all of the last dungeon mark cards you had are gone. I just tried to add the screenshot but it said I’m not allowed to add media in to this.

Thanks for reporting this.

Is anyone else encountering this issue?

Yes my husband also plays and this happened to him too. Do you need any of his player info?