I'm not sure if this goes here or in the support forum but here goes. I'm playing through the Dawnguard campaign and I've just "finished" Seeking Disclosure. I got the blood elder scroll from Serana's mother and the dragon elder scroll from the Dwemer city. Both items are in my inventory and the diamonds for both items are filled in the journal entry. However, when I go back to Fort Dawnguard to speak to the moth priest, he doesn't offer any new dialogue options. Is there something I'm supposed to do first? I thought I had to go further in the main quest so I got through obtaining the Dragonrend shout and the subsequent Alduin fight; my next objective is to talk to the Jarl of Whiterun. I figure at this point the elder scroll should be available to use, but the moth priest still doesn't have any new dialogue.

Additionally, I just noticed that I don't have the sun elder scroll and neither does Serana. Is this supposed to be the case?

Thanks for any help