I was just about to leave a post saying the same thing. A bit of
Googling suggests that this is a common issue (indeed it has been
listed in the known workarounds and common issues blog post since 4
December... perhaps Google/FeebBurner could update the MyBrand
migration instructions (or better still fix the problem)...
...I know this is a free service but FeedBurner has always been
great. Google are certainly not (no response is worse than a "umm...
we're looking into it" response.
Glad to get my feed back. Very unhappy with Google.