I have the same problem. I have two Blogspot feeds coming into one WordPress site and FWP is duplicating them, even the posts made 2 years ago. Everything has been working fine since I installed it a couple of months ago. Not all of posts are duplicated, about 80% of them. I don’t see any differences in the original source blog posts between the ones being duplicated and the ones that aren’t.
Does anyone have an idea why this could be happening? All of the FWP settings seem fine. I’m not sure what else to check.
