You could also try doing a fresh install since something is definetly wrong with your installation. Completely uninstall the game, install TSLRCM, then M4-78 and load a savegame from before entering the Sith Academy. That might fix it and should not screw anything up, but make a backup copy of your installation before doing this.
Also, if you prievously installed both mods from Steam workshop, try installing them with the installer instead.