Items not saved by gravestone about gravestone HOT 4 CLOSED

Does this happen without any other mods?
Are you using plugins?
Please provide your logs.

from gravestone.

There are other mods but the only thing that is different is that we started a new world with the same mods
No plugins added

• This is right before the point where I did the /kill command
  [13Jun2021 11:41:56.288] [Server thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:635]: Caused by: java.lang.NoSuchMethodException: net.minecraft.entity.player.PlayerEntity.dropInventory()
  [13Jun2021 11:41:56.289] [Server thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:635]: at java.lang.Class.getDeclaredMethod(Class.java:2130)
  [13Jun2021 11:41:56.289] [Server thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:635]: at net.minecraftforge.fml.common.ObfuscationReflectionHelper.findMethod(ObfuscationReflectionHelper.java:160)
  [13Jun2021 11:41:56.289] [Server thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:635]: ... 34 more

• Below is the log of the point where I did the /kill command to test it out. I had wood planks in my inventory and hotbar
  [13Jun2021 11:41:56.292] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: Nuclear_XD_2 fell out of the world
  [13Jun2021 11:41:56.298] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: [Nuclear_XD_2: Killed Nuclear_XD_2]
  [13Jun2021 11:41:59.225] [Server thread/INFO] [STDOUT/]: [tschipp.fakename.CommandFakeName:lambda$register$1:56]: true
  [13Jun2021 11:41:59.225] [Server thread/INFO] [STDOUT/]: [tschipp.fakename.CommandFakeName:lambda$register$1:56]: 2
  [13Jun2021 11:41:59.235] [Netty Epoll Server IO #2/ERROR] [net.minecraft.command.arguments.ArgumentTypes/]: Could not serialize tschipp.fakename.CommandFakeName$FakenameArgumentType@6789715b (class tschipp.fakename.CommandFakeName$FakenameArgumentType) - will not be sent to client!
  [13Jun2021 11:43:21.182] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: [Server] I see what happened, the items fell on the ground

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Please send the full logs via GitHub gist.
Please check if it happens without any other mods installed.

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Closed due to inactivity

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