We've noticed this a couple times recently where an LS member has been locked out of a run, and a GM call today made it painfully obvious that it's a bug on SE's end.
It seems under some conditions the Cosmo-cleanse vendor doesn't always actually give you Cosmo-cleanse, even though it states "Obtained: cosmo-cleanse." Supposedly you aren't charged, either. The item won't show in your key item list; this is a way of determining that you got hit by the bug.
So... double check that you have cosmo-cleanse before you truck out to Al'taieu, because there's no way in if you got screwed.
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