With Alchemy and Alchemy-based viewers (such as the Islandz viewer), setting your login location to a named region or to one of your favorites will not work, and instead the teleport is routed to the default login location for the grid.
I'd noticed that issue. Annoys me to no end when I'm testing server changes. I'd chalked it up to an Alchemy bug, though I'd not investigated the viewer code yet to be certain.
With Alchemy and Alchemy-based viewers (such as the Islandz viewer), setting your login location to a named region or to one of your favorites will not work, and instead the teleport is routed to the default login location for the grid.
Presumably, this is due to a protocol change.