Ranes Ienith is invisible until he or Navil Ieneth take damage.
During the Morag Tong guild quest you are given a writ to kill the brothers Ranes and Navil Ienith. They are found in the basement of the Dren Plantation Dren's Villa. When you open the door to the room Navil is visible but Ranes is nowhere to be seen. He appears after he or Navil is hit with a weapon. Not sure if this was the case in Vanilla Morrowind but it is not mentioned on the UESP Wiki that he is invisible: http://en.uesp.net/wiki/Morrowind:Ranes_Ienith. There are no messages in the log that describe why this is occurring.
OpenMW Version: 0.41 OS: Ubuntu 17.10 Mods Disabled Expansions Disabled Stock Settings Morrowind Version: GOG Download
(RM-4323 from redmine: created on 2018-02-12 by Joseph Aczel, , closed on 2018-02-13 by nobody)
Edited by redmine