This server pack

Describe the bug
An overworld biome is changed, in singleplayer the biome does not change.

Logs
latest.log

Screenshots
Server:
https://cdn.discordapp.com/attachments/544589452492931076/836409755052015646/unknown.png

Loading a backup of the world before the biome was changed in singleplayer:
https://cdn.discordapp.com/attachments/544589452492931076/836413948533538826/unknown.png

Updated from 0.4.8

... shit

Which update did you update from? This is very similar to #1796

I was using the server.properties file from 0.4.8 which already had terraforged

Did you remember to change server.properties to Terraforged?

Alright, thanks! This is the same issue as #1796 it seems, just... again >_<

Would it be possible for you to update BYG in the old instance where the biome hasn't shifted yet, and see if the BYG update does it?
Edit: I didn't update BYG, nvm.

team-abnormals/atmospheric#114

I don't think there's anything I can do about this issue now that is has happened, but I've added a mod that should prevent this in the future. Sorry for the inconvenience :/

We lost nothing for our server world since i took very good backups. I wanted to report this just in case someone else ever encounters it :D appreciate the support!

There's a possible sucky workaround btw:

Downgrade to 0.4.8, load a backup, add the mod Chocolate fix, visit all places you want not to change and then update to 0.4.10