Pluginless Khajiit Head Pack by ashiraniir makes OpenMW close.
OpenMW can´t render this heads. Chosing Khaajit race at generation window makes the game silent for seconds than CTD. Tested with OpenMW-nightly-86bd2f48-win64.exe in Win 7.
http://www.nexusmods.com/morrowind/mods/43110/?
Console log (only the last lines) Unhandled property type: NiStencilProperty Error in framelistener: NIFFile Error: Unhandled interpolation type: 0 File: meshes\b\b_n_khajiit_m_head_01.nif
(RM-1293 from redmine: created on 2014-04-25 by Amenophis ., , closed on 2014-04-26 by scrawl .)