Yup you should move all the master file on the top of the list and FalloutNV.esm should be the first file. To export your load list open the Fallout Mod Manager, choose your game ( Fallout Ne Vegas), then click the third option "Load order" then export it somewhere you have access to. When you've done it copy and paste the list of your load order here. :) The next thing you should do is to check for conflicts, go to Tools --> Conflict Detector. It should find if some mods that you use causes a conflict between them as a result it becomes the glitch you see.