I have a strange problem. I did http://www.newvegasnexus.com/downloads/file.php?id=39432 based on http://www.youtube.com/view_play_list?p=6CA8C36158924E10 I did and it works fine - as an ESP. If I leave it a "true" ESP, I can load it anytime after FalloutNV.esm and it will work. But, if I flip the ESM switch to fix the navmesh bug (companions won't follow me onto the roof without it), it has to load directly after FalloutNV.esm and before any other masters or the click-able options on the main menu won't appear.

The game will load, but the options (Contine, Load, Save, Options, etc) never appear. I can use FNVEdit to untick ESM, and the problem goes away (but the nav bug returns).

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FalloutNV.esm
MyShackNV.esm
CaravanPack.esm

Will work just fine, like the ESP does minus the nav bug.

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FalloutNV.esm
CaravanPack.esm
MyShackNV.esm

Will cause the main menu option not to appear (no console either).

The mod doesn't alter the menu one iota. The only thing changed on the vanilla side of things, is a door in the Wasteland. The rest resides in custom cells and world.

I made an empty plugin with nothing in it and flipped the ESM flag. If that comes before MyShackNV.esm, no main menu options. The content of the ESM that comes before it, is irrelevant it seems.

Just wondering if anyone as any insight into this? Did something change in NV regarding ESM's, or pseudo ESM's?

Thanks