Mod Loader (Required)

NeoForge

Minecraft Version(s) (Required)

1.21.1-144

Mod Version(s) (Required)

v21.1.0

Other Mods Involved (Required)

Yes

Notes (Required)

In dungeon fighting skeletons (assumed some modded), get random disconnects indicating 'java.lang.NullPointerException: Cannot invoke "net.minecraft.world.item.ItemStack.isEmpty()" because "stack" is null' for pickupnotifier.

Many mods involved.

After disconnect, could immediately reconnect and continue. So not technically a complete crash, more of a recoverable error requiring re-connection.

Debug/disconnect logs:

disconnect-2025-04-10_18.48.56-client.txt

disconnect-2025-04-10_18.52.11-client.txt

disconnect-2025-04-10_18.52.35-client.txt

disconnect-2025-04-10_19.03.02-client.txt

disconnect-2025-04-10_19.03.19-client.txt

Crash Report (Required)

https://pastebin.com/v5vPvMk0

latest.log (Optional)

No response

Fixed in latest version, thank you!

Thank you! 🫶

Fantastic, and thank you for your great work! We use almost all your mods!