Purchasing this pre-order will immediately unlock 6 exclusive character sheet backgrounds created from art in the book.

I checked my characters and I don't have anymore extra background sheet options then I did before I pre-ordered Mythic Odysseys of Theros yestaday. There was already some background art for MOOT available that i was using prior to pre-ordering. Wheres my extra backgrounds?

I don’t know, but maybe you have to enable the content at the beginning of character creation? If not, then don’t know.

Are you sure that you didn't have those backgrounds prior to pre-ordering? I got access to 6 backgrounds once I pre-ordered (MOOT 1 to MOOT 6) which is how many I'd expect.

I had access too MOOT 1 to MOOT 6 for at least the last couple weeks and was using one of the moot backgrounds. I only just pre-ordered MOOT last night. So I thought I would get additional ones. 

I pre-ordered it and can’t find them at all.

I have access to them, and I have not ordered it yet. I wonder if this is showing because of campaign content sharing? OP may be in a campaign where someone else already purchased it.

Quote from Oshcakes >>

I have access to them, and I have not ordered it yet. I wonder if this is showing because of campaign content sharing? OP may be in a campaign where someone else already purchased it.

 Don't believe so as I have had access to them backgrounds since before they advised the pr-order of MOOT.  Had access for at least 2 weeks. 

There's been some sort of weird bug or something because a number of us reported a few weeks ago that we suddenly had access to the EGtW and the MOOT backgrounds, even if we hadn't ordered either title.