I have a 357 magnum and wanted to make the barrel longer. So I go onto blender 2.49, make it longer, export as nif. Then, I go onto Nifskope 2.0.0 Pre-Alpha 5. When I load it, a message box pops up saying: "An MD5 hash comparison indicates this file will not be 100% identical upon saving. This could indicate underlying issues with the data in this file" The box then has two buttons: One that says OK, and another one that says show details, that when clicked, shows the directory to the nif. So I click OK, the mesh shows up fine (all white with no texture, dont know if that matters) I save, open the GECK (new vegas), I go on to the 1stPerson357, edit model, select the nif (which by the way, is in its proper directory under meshes with its own folder named after the mod) and what I get is a big exclamation mark. I then tried to find out what caused the problem, so I went to nifskope, chose one of the unedited vanila weapons, added a silencer for testing and when opened in GECK it worked just fine. Then I opened the exact same nifskope on blender, exported it without changing it, and I got the same error in GECK. Im on windows 10, Blender is 2.49, Nif script for blender is 2.5.9, nifskope is 2.0.0 pre alpha 5 and GECK is.... GECK Anyone know how to fix this? Thanks!