I am loading only the art.mul and artidx.mul into fiddler , is that part of the problem ? ( I cant really get all the rest though as this thing only extracts 4 types of .UOP )

Anyone have an answer to this ? Is there a better way to edit current .UOPs ?

Hi I am using the command line LegacyMULCL.exe to extract/pack the mul's from a UOP and back into it. If I use this on the most current stock version of artLegacyMul.uop it works fine unpacking and then repacking it with no ill effects in game.

If I take those extracted muls and run them through ...