Hey there! This is a known issue and is currently being investigated.
[quote]• Some players are unable to accept the [b]weekly "Means to an End" quest[/b] from the Prismatic Recaster.[/quote]
Known Issues list:
https://www.bungie.net/en/Forums/Post/256262498?sort=0&page=0
Stay tuned to the weekly blog update and BungieHelp on Twitter for more information on when this and other issue may be fixed!
The issue isn't that I can't accept the quest, the issue is that I don't have a prompt for the quest at all.
This means that the quest isn't at the Prismatic Recaster at all, and I am unable to even see it.