Same issue here.

Same, doesn't seem to work for me.

@Hassat_Hunter: same here. I have no other mods. version says 1.8.5, I tried re-installing, same deal. Vash is dead as a dodo

There needs to be a warning about this bug in the description, it's super annoying to get 30 hours into the game to find out that something went wrong with no way to fix it due to not having a save before Korriban.

In my case Vash was dead on Korriban with the datapad about Sion and the computer, but I have a quest saying I should talk to T3 about getting the location of M4-78 from a datapad I don't have and T3 has no dialogue options about this.

I'm not accountable for incompatible mods...

Only mods I've got installed are the english TSLRCM, fixed lightsaber colours 2, TSL Backdrop Improvements, KSE and M4-78EP, is one of them incompatible?

Fixed Lightsaber Colors yeah

How, it's a texture mod?

I just ran into the same problem. I only have 3 mods on, them being TSLRCM, M4-78, and then Canonical Jedi Exile, (which changes only one texture on the player chacter).

Im having this issue as well, but i have no other mods installed. Just TSLRCM and M4-78 Enhancement. :s

Try https://steamcommunity.com/sharedfiles/filedetails/?id=1402798020

(Removing the TSLRCM and M4-78EP seperaet workshop entries)

Just came back to say that i saw that before i checked the comment and changed it over fixed the issue! Thanks so much! @Hassat Hunter

I've noticed that whenever I do the conjoined version of the game it never works. Vash is gone but the map wont cough up the planet. So I have switched to the original version and added m4 78 seperately in the hope that it can be fixed.

I've recently ran into the issue where I loaded a save at the ventilation computer, and IS-18 is missing. He WAS there during my last session, I was talking to him and don't know what happened, and now since I have the code and access has been granted, there's supposed to be a cutscene, but since he's gone the trigger is gone (I guess). Also, both of my M4-78 quests were very suddenly blank. I reloaded to a save before I got to the world, and my Lost Jedi Quest said that I found Vash's remains when I definitely did not. Now I can't trigger a convo T3 to show me where m4-78 even is, and since I haven't done Onderon yet, I'm waiting for a Kelborn trigger to go back, but since my modded file is confused about whether or not it has m4, I'm still waiting for a call.

My mods are the TSLRM and M4-78 separately, and the canon Exile, which I can see from the comments is enough to confuse the Mods. So my plan is to find a save prior to Korriban entirely, and just redo it all and see where the chips fall for now. Beyond this, do you all have any advice, because I'm not sure what the consequences will be if I unsubscribe to any of the mods I currently have.

Unsub from the seperate and install the combination above.
Can't say much on Canon Exile though.