Well, yeah. But for example Cyclic mod has more options in ingame mod config, than in its config file. And the author himself replied to some similar topics on forums, that MC Forge did something with configuration systems. I know for sure, it's not a problem of my mods, but Forge. Is there anything you would suggest me doing in this case?
*EDIT : He channels other players with same problems to this https://github.com/MinecraftForge/MinecraftForge/pull/6467 and comments that Forge blocked him somehow ...