Fabric 1.20.1: Random occassional kick

[LokeYourC3PH]

Is it a mod compatibility issue?

No

If it's a mod compatibility issue, please provide the link(s) to the incompatible mod(s)

No response

Minecraft version

1.20.1

Describe the issue

Sometimes, me and my friends get randomly kicked from the server with the following error:

Caused by: java.lang.IndexOutOfBoundsException: readerIndex(11) + length(1) exceeds writerIndex(11): PooledUnsafeDirectByteBuf(ridx: 11, widx: 11, cap: 11)
 	at io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1442) ~[netty-buffer-4.1.82.Final.jar:?]
 	at io.netty.buffer.AbstractByteBuf.readByte(AbstractByteBuf.java:730) ~[netty-buffer-4.1.82.Final.jar:?]
 	at net.minecraft.network.PacketByteBuf.readByte(PacketByteBuf.java:1303) ~[client-intermediary.jar:?]
 	at net.minecraft.network.packet.s2c.play.EntityEquipmentUpdateS2CPacket.<init>(EntityEquipmentUpdateS2CPacket.java:28) ~[client-intermediary.jar:?]
 	at net.minecraft.network.NetworkState$PacketHandler.createPacket(NetworkState.java:459) ~[client-intermediary.jar:?]
 	at net.minecraft.network.NetworkState.getPacketHandler(NetworkState.java:522) ~[client-intermediary.jar:?]
 	at qouteall.imm_ptl.core.network.PacketRedirection.createPacketById(PacketRedirection.java:161) ~[imm_ptl_core-3.3.7-f6ec9a0b46a5a264.jar:?]
 	at net.minecraft.network.packet.s2c.play.CustomPayloadS2CPacket.handler$fgd000$imm_ptl_core$readTheActualRedirectedPacket(CustomPayloadS2CPacket.java:1563) ~[client-intermediary.jar:?]
 	at net.minecraft.network.packet.s2c.play.CustomPayloadS2CPacket.<init>(CustomPayloadS2CPacket.java:50) ~[client-intermediary.jar:?]
 	at net.minecraft.network.NetworkState$PacketHandler.createPacket(NetworkState.java:459) ~[client-intermediary.jar:?]
 	at net.minecraft.network.NetworkState.getPacketHandler(NetworkState.java:522) ~[client-intermediary.jar:?]
 	at net.minecraft.network.DecoderHandler.decode(DecoderHandler.java:32) ~[client-intermediary.jar:?]
 	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:519) ~[netty-codec-4.1.82.Final.jar:?]
 	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:458) ~[netty-codec-4.1.82.Final.jar:?]
 	... 37 more

[qouteall]

Is it LAN multiplaying or dedicated server?

To know whether it's a mod compatibility issue, does this issue occur with only immersive portals mod and fabric api in a freshly created new world?

[LokeYourC3PH]

Is it LAN multiplaying or dedicated server?

To know whether it's a mod compatibility issue, does this issue occur with only immersive portals mod and fabric api in a freshly created new world?

Dedicated Server.

And I cannot remove 300 mods from an actively played on server, but suffice to say it probably doesn't happen on its own no.