Hello,
I have this exact same issue. This was working for me for a few months and then one day I see all these question marks instead of previews. I have tried uninstalling and reloading about 40 different times trying different things when reading all these posts.
Does anyone really know what this issue is about?
I was on the phone with Roxio support for aver 2 hours and they could not figure it out either.
Please help!!!