Probably not a corrupt install.
might be the k_003ebo_enter.ncs script, an Ebon Hawk on enter script. One of the mods that adds this script to Override is the HANDMAIDEN PARTY MEMBER OPTION FOR FEMALE EXILES mod.
the MaidenHack readme explains that it has also been edited as on enter script for the 004EBO area (Red Eclipse). Seems to be same script.
Remove it temporarily from Override BEFORE the scene when traveling back to the Hawk and that will do it. Copy later back to Override after saving and passing the Red Eclipse encounter, preferably NOT inside the Ebon Hawk.
I haven't tried this (yet) with TSLRCM but problem might persist for it too.
If it's not that script ... lemme know ...
hope that helps dude