I just imported my PhD dissertation proposal into Scrivener and I have been using EndNote as my bibliographic manager. The weird issue is that some of the inserted citations in the imported document are showing up correctly like “(Solursh et al, 2003),” but others are showing up as “ADDIN EN.CITE ADDIN EN.CITE.DATA ( HYPERLINK \l “_ENREF_19” \o “Steinauer, 2009 #47” Steinauer et al., 2009).”
It looks like you’ve been using MS Word to write your proposal, and what you are seeing is the field codes that Word uses for items that may change (dates and tables of contents work in a similar way). You probably need to save to rtf, or do something else that will strip out the field codes and leave the text. I haven’t used Word for a long time, so I’m not sure how the latest version works.
In Word, there is an EndNote feature that removes Word’s field codes and restores the EndNote temporary place-markers (the curly brackets). I don’t have a document set up that I can easily check the process at the moment, but I think the option is in the EndNote menu from within Word. Try that and then re-export back to Scrivener.