The featured image assigned to the post displays on the sub-site but not on the mainsite and I've tried all of the options under Featured Image Import.
I have the following add-ons enabled:
Append text to post
Featured Image Import
Open links in popup
Post formats addon
Use External Permalinks
Youtube Feed Import
The themes are identical interms of features activated so I've just about ruled out there being a configuration difference with the themes.
Remote access enabled should someone needs it.
Any responses appreciated