Minecraft 1.21.4
Fabric API [0.118.5+1.21.4]
ImmediatelyFast [1.3.6+1.21.4]
Yet Another Minecraft BINGO [2.5.1+mc1.21.4]

Steps to reproduce:
Play a game of bingo
Obtain items
Notice that the Bingo card HUD on the top left is either completely stuck, not updating at all, or registers some items sometimes but not others

Steps to bypass this issue:
Set hud_batching to false in ImmediatelyFast config

This issue has been fixed in Yet Another Minecraft Bingo. You can download the fixed version here: https://modrinth.com/mod/yet-another-minecraft-bingo/version/2.5.2+mc1.21.4