Time machine (older) backups not recognized after renaming the drive

Hi all.
For quite sometime I've been backing up my data (in my Mac Book Pro) using the time machine to an external drive.
Recently I changed the name of the drive I was backing up to from Finder and now I see the older backups using Finder but they're not recognized in Time Machine mode.
Is there anything I should do to make it know that those older files are actually in the same drive? I'm guessing changing a couple of lines in a text-only file (such as an XML file) where there's a file mapping will fix the issue but I'm not sure which file and where exactly that is.
Thanks in advance.

Thanks for the valuable online resource you shared.
There's a lot of critical information there. Bookmarked.
Back to the issue… Before taking any action I created an additional user in Mac OS. This had nothing to do with the awkward behavior of the TM, it was just something I should have done long ago.
After I created that user I wanted to make sure that the problem persists before doing anything. So I logged of the new account and switched to the admin account, and for the one last time I entered the TM mode. Guess what? While managing users the system must have corrected something and it finally decided to recognize my older backups! This is pretty awkward but it just happened and I'm seeing all the backups in TM mode now.
Thanks again for the help and the link

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