yes, confirmed this. Went into Rolanberry Maw and appeared in Sauromogue [S]. Warped out to change job, couldn't get back in at Rolanberry. Tried Pashhow and Batallia, nada. Had to wait for people to show up at Garliage in order to try Sauromogue Maw.. which worked.
Long story short:
The Maw in the [S] zone is the one you that you need to use in the present day zone. In order to use other present day Maws, you have to activate them in the past.
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