All items files have to be in same items folder - so if you have an items folder in your mod-folder all the working .items have to be in it
you can copy the original ones into your mod-folder to fix problem though. If you aren't trying to change anything with the same .item name as existing just copy everything from either the packed items or BI items into your mod-folder (depending on if you are using RTW or BI)
If you have new items with same names as existing just make sure you don't overwrite them.
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