I have come across many scenarios where people have their BitLocker Information in AD, and then different funny situation happened along the way that i want to talk about in this blog post.
Case 1 : What will happen if you rejoin a BitLocker protected computer to the domain
Case 2 : Renaming a computer which has BitLocker
Case 3 : Computer was used by user1, user1 resigned, so you reset his computer account in AD, reformatted the machine, join it to domain and re-enabled BitLocker on it
Case 4 : deleting computer which has BitLocker from AD
Case 5 : Enabling BitLocker before joining the machine to the domain
Case 6 : divergence happened, you have a domain joined machine with BitLocker enabled, and in AD you do not have recovery information for that computer.