I am using TR again after re-installing MW, and this time around I seem to be missing some files. I narrowed the problem down to TR after uninstalling everything and re-equipping MW one addition at a time. So for a list of my current bare-bones MW:

MW - TR - BM - BM patch 1.6.1 - MW Code Patch - Unofficial MW Patch 1.6.4 - MWE - Tamriel Rebuilt 1

along side are the FPS optimizer 1.96 and MGE (complete with MWSE)

I ran through a few times to confirm it was consistant, so here are some results.
This is after I cycle through the heads to the end of the list, and come back to the default beginning head. Or the reverse.

Load error Meshes\TR\b\TR_Dark Elf_M_head_01.nif
Cannot load file Meshes\TR\b\TR_Dark Elf_M_head_01.nif
Use the Default object Marker_Error.NIF

Load error Meshes\TR\b\TR_Argonian_M_H04_Nal.nif
Cannot load file Meshes\TR\b\TR_Argonian_M_H04_Nal.nif
Use the Default object Marker_Error.NIF

Load error Meshes\TR\b\TR_pb_IMP_head03.nif
Cannot load file Meshes\TR\b\TR_pb_IMP_head03.nif
Use the Default object Marker_Error.NIF

And after I click yes to continue MW.exe, it will CTD.
I have tried almost every variation of those mods to find the incompatability, except removing the BM 1.6.1 patch. I added that first without thinking and I don't really want to re-install again.

Any experience with this problem, or is there a pack that I am missing for TR, or some files that I could re-name and use as filler.
This is not really an issue for general gameplay yet, and even in character creation I can work around it. It just seems odd.

did you use bsareg to register the tr bsa file?

Good call on the bsa files.
I had run the bsa reg and it appeared to register the files when I first installed TR. It turns out I did not have permission to edit the .ini file in any way. Long story short, including a song and dance number with Cake and some hot tea, I had to edit the file manually in an off hand site and replace the old copy.

EDIT: thank for all the help with my problems recently, this goes to the whole mods section. http://content.ytmnd.com/content/8/5/0/8506b95f6385ec77923e81bc5fc8fe83.jpg for all