If you're afraid of getting the massive buggy shaft at the start of act 4, this is what I found on leddit:
If Yirlet isn't in your party in whatever area you were in right before the "soft footsteps" voidship encounter happens it breaks the encounter and then many quest flags in Act 3 and 4. Act 3 will be playable but a lot of stuff is broken in the backgroup. Act 4 will then have everything broken.
I did at the end of act 2:
- Do everything before the final Drukhari ambush encounter
- Go right to dragonus, do ceremony immediately after fending off attack ( make no jumps)
- After leaving ceremony and act 3 starts re-enter dragonus and select Yirlet in the party
- go back to voidship and then make jump, the soft footsteaps scene should play
This has allowed me to get flags working in act 3 and also act 4 works
I have absolutely no fucking clue if this works or not, since I'm still in Act 1. If you already got that juicy shaft, here's a proposed solution:
Ok, so this worked well enough for me so far:
- Go to the Rogue Trader's quarters on the ship (this is important or it won't work)
- Go to 'Etudes' in Toybox and type 'brief' in the search field
- Look for 'KTC_Chapter4Start_Briefing' and expand the 'elements' dropdown
- When in your room, click Play scene KTC_Ch4Start_Briefing'
After I did that, I got what appear to be the proper chapter 4 quests. Hopefully I haven't broken anything else down the line, but it looks okay so far