I don't know the exact reason, but I know that if you rename the ru folder to something, and then back to RU in caps, the problem gets fixed.
Examples of mods that are affected by this are MysticsItems and ImprovedRussianTranslation.
(Same issue happens with InLobbyConfig)
I don't know the exact reason, but I know that if you rename the
ru
folder to something, and then back toRU
in caps, the problem gets fixed. Examples of mods that are affected by this are MysticsItems and ImprovedRussianTranslation. (Same issue happens with InLobbyConfig)