Possible Fixes

Yes

Modpack Version

2.7

What happened?

Hi!

I've recently updated the server files from 2.6 to 2.7, all went well.
On the client side, after updating, whenever I try to connect to the server, I get the following message:

Channel [minecolonies:switch_building_with_tool] failed to connect: Channel of mod "MineColonies" failed to connect: The client wants the payload to be version: 1.1.820-1.21.1-snapshot, but the server wants it to be version: 1.1.821-1.21.1-snapshot!

For all the MineColonies channels, I get this.
Tried updating the instance mods folder with the latest MineColonies NeoForge snapshot from here:
https://www.curseforge.com/minecraft/mc-mods/minecolonies

Still the same.

latest.log

https://gist.github.com/gajdi8/03ccb511dc22f98e9f25b414abc66d03

Developer reports

No response

I am also facing the exact same issue. Attaching the debug and latest logs.
debug.log
latest.log

The server seems to have a different version of minecolonies, but they have to match

+1

I have exactly the same issue.

The client wants the payload to be version: 1.1.820-1.21.1-snapshot, but the server wants it to be version: 1.1.821-1.21.1-snapshot!

This error message often gets confused and swaps the mod versions for client and server
I believe in this case it is the server that is on the old version while the client is on the newer one