I can verify the comment made by @Anonymous. The feeds I added manually before my import was completed are problematic. The feed will have new items, but because I have the old reader configured to show only those folders/feeds that have unread items and because the count is somehow incorrect, those feeds added manually before the merge remain hidden even when unread items exist.
I can verify the comment made by @Anonymous. The feeds I added manually before my import was completed are problematic. The feed will have new items, but because I have the old reader configured to show only those folders/feeds that have unread items and because the count is somehow incorrect, those feeds added manually before the merge remain hidden even when unread items exist.