I have no idea how to trigger Beginning/Blue Eyed Man/Walbauk for Dulrig, and when I go to Mythshore, cannot find the two I hid in the hideout and have no idea how to fix it :(
I think you are talking about 0.55 content which available for Patreon supporter. I suggest you to put a spoiler tag.
[Spoiler]
First, you need to play in Normal Logan route, reporting Everette about Mythshore, finished Trouble in Den event (which you can gain Logan's 3rd heart).
Then, go to check the Alpha den in Wolven den. After you trigger AlphaxBeta scene, you can talk with another NPC about Blue Eyed Man.
If you already finished Mythshore event, John and Paolo will move out and you cannot find them in their hideout. But you can still process this event since this event does need them to trigger.