Background info: My 'sermon' here is named "Passover (3 of 5)". The slide I'm working with is from the Logos Interactive called "Bible People Visual Timelines".
Problem: When I click "Send to 'Passover (3 of 5)'" in the screenshot below, the image chosen shows up as a blank, black slide in Sermon Builder.
But, when I click "Send to PowerPoint," the same image exports perfectly to PowerPoint. When I then export it from PowerPoint as a JPEG and try to upload that JPEG to Logos Media, the upload fails.

Since the option to "Send to 'Passover (3 of 5)'" exists, and since I'm able to successfully use that option with the Logos map set, it seems like it should work. User error, perhaps?
Any ideas?