Unofficial Fallout 4 Patch

Turned out that there's a fat bug on MQ106InvestgationDummySCRIPT.

There are two kinds of clues on this quest:
(1) The key clues that will advance the quest (i.e. they will set a quest stage when you activate them).
(2) Miscellaneous clues. These do not advance the quest.

Irrespective of these propeities, all clues may have a scene specified on MQ106InvestgationDummySCRIPT. In most cases, these scenes only include a few lines spoken by the player.

Now, the code on the script that is supposed to start these scenes (specified by the "myScene" property) looks as follows:

        if stageToSet != 0 || bKeyObjectNoStage
            if !MQ106Investigations.getStageDone(stageToSet)
                debug.trace("       MQ106inv stage "+stageToSet+" not set.  Doing it now." )
                ; advance the quest if this is marked as a key object.
                if !bKeyObjectNoStage
                    MQ106Investigations.setStage(stageToSet)
                endif
                if (dogmeatAlias.getReference()).getDistance(player) > 2000
                    ; dogmeat is really far away... scheat and get him hnere!
                    dogmeatAlias.getReference().moveto(player)
                endif
                myScene.start()
            else
                debug.trace("        Stage is already set!" )
            endif
        endif

For unknown reasons, this script will play scenes only for the key clues (for all other clues, stageToSet = 0). Moreover, it will stop playing scenes on any clues after the quest has been advanced (because MQ106Investigations.getStageDone(stageToSet) returns false only if the quest has not been advanced yet)..

Makes no sense.