Is Google Having a Hard Time Switching FeedBurner Subscribers?

We moved our main feed from a Feedburner account to a Google account yesterday, and have had a hard time since then due to various reasons. We have had a problem where more than 50% of our subscribers disappeared along with having a problem with the MyBrand service Feedburner provided users with.

The problem arises with partial move of data from the old feedburner servers to the new Google servers, which involves losing more than half of your subscribers and having to deal with a 404 error for MyBrand, even after you switch from old feedburner MyBrand servers to the new Google servers they provide you with, this is definitely a sore point from our move, and we are also hearing from other sites about the same.

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