Importing image to Framing & Mosaic Wizard

When I try to “fetch” an image into the F&M Wizard, I get an error message that just says "OK"
I get this even trying to fetch a Fits straight from Sgpro. Also it fails to import from Astrobin,
The Plate Solving databases work fine, so I have been able to produce a mosaic from them but I really would like to be able to fetch from Astrobin or one of my previous frames.
Any ideas—Thanks folks