happens with owo lib 0.11.0 and things 0.3.1, both mods work just fine in a singleplayer world but as soon as i try joining a server that has those mods i get kicked with "connection lost %s". server log just says player disconnected but client log points to a bunch of missing tags
ive had a similar issue with betterend and its dependency bclib, but never figured out the cause for this
client log https://paste.atlauncher.com/view/fe63915c-50bc-4322-9c62-a645297b5e9a
server log attached as file
latest.log

This is actually a bug with Quilt Standard Libraries, and should be fixed by this pull request: QuiltMC/quilt-standard-libraries#326
I am not sure exactly what triggers the issue, but this is generally not something we can solve at this time.

Given that PR fixes a bug with a quilt-specific API, I don’t think it’s related.

Looked at the server log, definitely unrelated.

Even in that case, I believe the chance of this being caused by Things to be extremely slim and would suspect some kind of Quilt problem either way