Aezex,
did you find someone to help me out here?
By now there are 146 mods in my modpack including Mekanism and Atomic Science. But after I installed Atomic Science, (yes - it works even with Industrialcraft 2! I just said that, because of I heared about some threats that this isn't possible.) Forge says again "ID missmatches between world and game. The concerned items are: Steel dust and copper wire. But Mekanism brings already exactly this steel dust. The copper wire appeared in NEI since I started to play Unhinged (without any changes to the modpack). It's a riddle why Atomic Science changes this items. However, same problem as usual. All mods are loaded, and they appear in NEI, I can use all items and blocks properly, but Forge refuses to save my game duo to the ID mismatches.
LexManos, Eloraam or Spacetoad should read this threat. The mod authors should know what's going on.
Does someone know whether theres a kind of "force save" option in Forge which you can access via console orders?
Debugging features which can help me?
There must be a way to save the game progress. I'm close to have the modpack of my wildest dreams. This is why I don't want to give up. You should can say Forge just ignore these mismatches and save regardless of any ID mismatches. Just overwrite the old IDs with the new ones.
Please guys, help me!