Review 360 Stuck - This item is still processing and will be shown here automatically when ready.

Hello, I got the dreaded message this morning. Actually, this is the second time in as as many weeks that I've had it. I don't think this is anything to do with outages, network endpoints or bad versions of SL. I know this because if I open up a brand new project and create a simple slide and upload it to Review360, it works perfectly. But when I go back to the large project I am working on and try to upload that to Review360, I get the dreaded message below.

I have a sneaky feeling that it may be to do with the fact I am using a SL template that I have previously uploaded to Review360. To explain further... about a month ago, I created a SL360 project from scratch, uploaded it to Review360 and all was fine. A few days ago, I copy and pasted that same SL360 file, renamed it, redesigned the content and when I uploaded it to Review360 as a new project....bam! 'This item is still processing and will be shown here automatically when ready'. :(

I can't help but feel that because I am copy and pasting and renaming a previously uploaded SL360 file, it causes a gremlin in the system. @Articulate - am I on to something?

P.S. The reason I copy and paste and rename SL files is because it would take me a long time to start each project with a brand new blank SL file. This is becasue I would have to download all my organisation's assets, logos, branding, images etc to the new file every time. I have also created my own course player which I do not want to have to recreate every time I start a new project. So, in the interest of efficiency, I copy and paste SL files and just repurpose them.