achievements not saving

[quyzi]

Both client and the server are using 6.6.1.522 with the following mods

 

Thaumcraft 3.0.2c

DivineRPG 1.2.7

IronChest 1.4.7-5.0.0.228

Twilight forest 1.15.1

Rei Minimap 3.2_06

 

Coremods: CodeChickenCore 0.7.1.0, NEI 1.4.5.1

 

Server doesn't have codechickencore or nei, or minimap.

 

When I log in the achievements are reset. If I get one (open inventory) and leave the server and come back, it stays. if I get one and leave the server and quit the game entirely, it's gone again when I go back.  Theres no errors regarding this on either the client or the server logs.

 

Not sure why it's doing this. It's rather annoying. Any ideas?

[luacs1998]

Are you using multimc by any chance?