Yupp I am having the same issue, First logon tonight was fine, but then found i could not access anything, chat or open inventry etc..
Logged off and havent been able get back on again, Tried 4 times every time for around 20/25 minutes it has been stuck on the "Primalgamedata_BP" Screen. Ended up tasking manangering the game. I am the same as Jawn on Siren's Call L6. The last try i loggon on reach gamedata_BP and went to the pub, Got back just after and an hour and a half and it is still stuck in the same place.
Could do with the Server fix on this asap..