AOF 7 chunk error??

[granite cloak]

me and my friend keep getting this error on our server https://mclo.gs/6pSbdbR
fresh world, fresh server install, fresh client install. no added mods on the client.

server specs: Threadripper 3975wx, 256gb ram, with 16gb of dedidated wam.

this same crash has happened to me around 6 times in an hour

and twice to my friend

my client was originally running with 24gb ram due to a different mod pack i was playing

about half an hour in i switched to 12gb and the same issue was still happening

i pregenned around 600 chunks in the overworld, nether, and end with chunky

[simple thunder]

Hi. Have had some help looking at that, and it looks like you’ve got mismatched client and server.

Perhaps you’ve modified the clients modlist?

Also, could be mismatched configs between client and server.

[granite cloak]

thats strange, im not sure what would be different

the only additions the server has is an anti xray, and styled-nicknames

neither of which need to be on the client

[granite cloak]

ive had a new user join with a fresh install of the modpack, and theyre crashing as well

installed from curseforge