Some modded meshes are invisible
I am running OpenMW 0.46 on a macOS 10.15.6 (Catalina) with a CD version of Morrowind, Tribunal & Bloodmoon (English).
The problem occurs with some mods where a mesh is replaced by a new .nif file (New Boots of Blinding Speed and SM_Mace of Aevar Stone-Singer are good mod examples). The modded element simply doesn't show and becomes invisible.
The problem occurs even when removing all other mods and esps (both from mod folder and openmw.cfg) and starting up from a content list containing only Morrowind, Tribunal & Bloodmoon.
The problem doesn't occur on OpenMW 0.45, but it does on 0.46 up to the latest unreleased build marked 0.48.
The problem doesn't occur in vanilla Morrowind or the Windows versions of OpenMW I was able to test through CrossOver.
My openmw.log file (issue.zip) doesn't seem to show any related errors.