Instead of having the joined the game message once you get it many times.
If you kill it, you will get the left the game message but it will not respawn (and the command is on a repeating command block)
Once killed, trying to respawn it says it is already logged on
Trying to get rid of it with /kick, /player kill, /kill etc... seemingly works but trying to respawn it still doesn't work, meaning it's still there
Reproducing
Get a command block and place it down
Set the command to player somename spawn
Set the command block to repeating
Activate it
Quit Minecraft
Reopen the world
Try using the command block again
Additional information
Minecraft 1.20.4
Carpet v1.4.128
Lithium 0.12.1 (maybe a compatibility issue?)
Note: Sometimes the game just crashes a while after spawning the player, here's the interested part of the log:
net.minecraft.class_148: Exception ticking world
at net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:952) ~[client-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:845) ~[client-intermediary.jar:?]
at net.minecraft.class_1132.method_3748(class_1132.java:110) ~[client-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:683) ~[client-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:270) ~[client-intermediary.jar:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 257
at it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap.fixPointers(Int2ObjectLinkedOpenHashMap.java:1013) ~[fastutil-8.5.12.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap.shiftKeys(Int2ObjectLinkedOpenHashMap.java:356) ~[fastutil-8.5.12.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap.removeEntry(Int2ObjectLinkedOpenHashMap.java:264) ~[fastutil-8.5.12.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap.remove(Int2ObjectLinkedOpenHashMap.java:372) ~[fastutil-8.5.12.jar:?]
at net.minecraft.class_5570.method_31757(class_5570.java:48) ~[client-intermediary.jar:?]
at net.minecraft.class_5579.method_31850(class_5579.java:221) ~[client-intermediary.jar:?]
at net.minecraft.class_5579$class_5580.method_31750(class_5579.java:115) ~[client-intermediary.jar:?]
at net.minecraft.class_1297.method_31745(class_1297.java:3661) ~[client-intermediary.jar:?]
at net.minecraft.class_1297.method_5650(class_1297.java:405) ~[client-intermediary.jar:?]
at net.minecraft.class_1309.method_5650(class_1309.java:713) ~[client-intermediary.jar:?]
at net.minecraft.class_1297.method_31472(class_1297.java:381) ~[client-intermediary.jar:?]
at net.minecraft.class_1308.method_5982(class_1308.java:752) ~[client-intermediary.jar:?]
at net.minecraft.class_3218.method_31420(class_3218.java:379) ~[client-intermediary.jar:?]
at net.minecraft.class_5574.method_31791(class_5574.java:54) ~[client-intermediary.jar:?]
at net.minecraft.class_3218.method_18765(class_3218.java:363) ~[client-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:948) ~[client-intermediary.jar:?]
... 5 more```
What's wrong
Reproducing
player somename spawn
Additional information
Minecraft 1.20.4 Carpet v1.4.128 Lithium 0.12.1 (maybe a compatibility issue?) Note: Sometimes the game just crashes a while after spawning the player, here's the interested part of the log: