After updating 4 mods- only Binnies has worldgen out of the 4, I started getting this on my server.
We just updated to binnie-mods-4.12.2-2.5.0.115

Why is it retrogenning, I didn't see anything in the changelog.

The odd thing is that it's sending it to all of the players on the server, there is nothing in console at all.

[18:38:47] [main/INFO]: [CHAT] Biome: swampland, time: 4653 / 10156653
[18:38:57] [main/INFO]: [CHAT] Tags:
[18:38:57] [main/INFO]: [CHAT] ActionData:
[18:38:57] [main/INFO]: [CHAT] Biome: swampland, time: 4804 / 10156804
[18:39:04] [main/INFO]: [CHAT] Tags:
[18:39:04] [main/INFO]: [CHAT] ActionData:
[18:39:04] [main/INFO]: [CHAT] Biome: swampland, time: 4908 / 10156908
[18:39:16] [main/INFO]: [CHAT] Tags:
[18:39:16] [main/INFO]: [CHAT] ActionData:
[18:39:16] [main/INFO]: [CHAT] Biome: swampland, time: 5079 / 10157079
[18:40:49] [main/INFO]: [CHAT] Tags:
[18:40:49] [main/INFO]: [CHAT] ActionData:
[18:40:49] [main/INFO]: [CHAT] Biome: fen, time: 6459 / 10158459
[18:40:54] [main/INFO]: [CHAT] Tags:
[18:40:54] [main/INFO]: [CHAT] ActionData:
[18:40:54] [main/INFO]: [CHAT] Biome: fen, time: 6542 / 10158542
[18:41:52] [main/INFO]: [CHAT] Tags:
[18:41:52] [main/INFO]: [CHAT] ActionData:
[18:41:52] [main/INFO]: [CHAT] Biome: fen, time: 7418 / 10159418

https://i.gyazo.com/thumb/1200/ced249196776d9e9ff21358ba217c1b1-png.jpg

This is verified to happen in single player as well.