I had this to once when I started an Asmo char on Siel. Just relogged when it happened. Afterwords it went away without doing something...
Its plain and simple, they just need to make Lumiel more appealing for the moment. That some people might consider transferring. It will be hard...
They should consider doing something worthwile on Lumiel, to get some more players there. Some kind of reward, temporarely higher exp rate,...