Hi, I've been trying to set the "doesn't affect stealth meter flag" on all the horses in the game to ensure that my stealth eye doesn't open when I move in front of my own horse. However it doesn't seem to be working. It's also advertised on several other horse mods but they also don't work.

Is this a known issue or is it some additional behaviour with horses that I need to check?

Well I tried a few mods like educated horses which claim to have this feature and it didn't work with them either. I assume there's some special case stuff going on with the player's mount. Anyone have any ideas?