Apologies for my english, i'm italian How already stated from peardox in First Mod Tutorial the game has a caching issue on the saves so if you have already obtained an item in the game you can't change it via mod, you have to re-obtain it . I encountered this problem with one of my mods (check comments to understand better) where i have missed a status effect. I have tried to change it and knowing the caching issue i made a promotional item for people that have already obtained the object. In this way they could drop/sell the item and use the new one w/o pay again the price.
But i have also wrong the fix.. the item GUID was the same, and it has clashed with the GUID that was already in my vendor's lootlist totally disabling it (the whole lootlist). After that i was no able neither to add the items contained in the lootlist with the console. Hence i suppose it disable not just the loolist but also all the contained items. To solve it i have changed item's GUID and debug name (just of the one of the fix) making a new item (a clone). But now people that using the fix are even able to acquire a clone of the item from vendor. To avoid that i should fix also the vendor lootlist removing the item but this bring me in the previous situation and in a sort of loop. Imho this system can just create problems to anyone (modders&users)
So please can we have a more tidy way to work? Explain those things to users isn't simple and could just create confusion, could you try to fix in some way this issue? Thnks in advance