I got the problem that I won't find the bag of Vash on Korriban but instead finding her being dead in the cage. She "contains" a onehanded lightsaber and a datapad; thus, it is impossible to get T3-M4 telling me the position of M4-78.
I installed the TSLRCM and the M4-78 Enhancement Project after installing all the other mods (which are not very many) and TSLRCM is working fine and there are entries of M4-78 in the savegame globals when I open the savegame with KSE, too.
It'd be great if there was an easy solution to solve this problem, like changing globals with KSE (I didn't find the right one yet) without starting from the beginning of the game.