Game kick when changing speed in certain chunks

[^Minecraft 20w48a - Multiplayer (3rd-party Server) 2020-11-27 10-50-19.mp4]Whenever changing speed in certain chunk strips, the server kicks you. It happens to everyone else on the server, even on vanilla. It's been annoying us for the longest time, and it would be amazing if this bug would be fixed. Thanks!

It only happens whenever you change speed inside of a chunk, regardless of the blocks around you.

Error message:
Internal Exception: io.netty.handler.codec.DecoderException: javalang.IndexOutOthoundsException: readerIndex(4125) + length(1) exceeds writerIndex(4125): UnpooledHeapbyteBuf(ridx: 4125. widx: 4125. cap: 4125/4125)

Server: 20w48a vanilla
Client: 20w48a vanilla