We have an application that displays photos of employees. The images are uploaded from files and rendered inline via a NotesStream.SetContentFromBytes. The field in Designer is regular Rich Text, not stored as HTML/MIME. The NotesStream creates a new MIMEEntity.
In the 9 Standard client, the image is seen as an attachment, not inline. In the 9 browser client, it's inline. In versions before 9 (i.e. 8.5.3) it's inline. Viewing the same document at the same time in different clients show the same - attachment in 9 standard, inline image in the others. If I manually copy an image and past it in, then save the document it gets converted to an attachment (9 standard).
I made a copy of the database, changed the Rich Text field to store as HTML/MIME, and ran the import. It's still an attachment.
It seems that this is a difference in how the Notes 9 standard client is rendering inline images. I've called Notes support, but I wanted to post and see if anyone else has seen this or perhaps have a thought.
Cheers, Brian