My predecessor blacked me out and pulled me back in less than a day? Why?

If your predecessor blacklists you, you will be pulled out in less than a day. Then I think your predecessor may have blacklisted you from the beginning, or he just broke up with you. He was very angry. He must have thought at first that he never wanted to contact you again, so he blacklisted you, but as time went on. He will become less and less angry in his heart. When he is not angry, he thinks for a long time and pulls you out of the blacklist. In fact, it also gives you an opportunity to contact him actively.