The meta.lsx file basically says
1) What modules are activated in the save game
2) What the in-game time is
3) What map you are on
If you're trying to merge a mod into an existing save, you would need to create a new game with the desired mod(s) enabled, and then copy/paste the meta.lsx over (and overwrite the old one). How are you changing the meta.lsx file, and what mods are you trying to merge?
I had the blank "Modified Main" mod you described in the previous campaign modding thread, and then I tossed in Source Difficulty and Respawning Mobs and maybe a few others (Rare Skillbooks Always Spawn, Crafting Tweaks and Enhancements), and none of them worked to my knowledge. It had been using the Modified Main meta.lsx file, and when I changed it to say the Source Difficulty meta.lsx the game stopped working.
Were the mods I tried to merge just unmergeable?
