Backing up an encypted drive on an encrypted drive
I have searched, and have been unable to find an adequate answer to my question. My apologies as I'm sure this is a relatively elementary question for the users here.
I have encrypted my Windows 10 boot drive with BitLocker. I have also encrypted my USB backup drive with BitLocker (separate Recovery Keys). I am using Macrium Reflect to do Grandfather, father, son back-ups to this drive. This drive stays connected to my system most of the time.
Additionally, I would like to add a second back-up drive that I do NOT leave connected to my system, to protect against ransomware attacks. I will, presumably, be encrypting this drive as well.
I am concerned about my ability to recover from my backups in case something happens, considering every drive is encrypted with a different key. My biggest concern is the second back-up drive, which will likely be an image back-up. I will be encrypting an already encrypted image. Assuming this is the case, it begs the question if I even need to encrypt the second back up drive, as the data backing up to it will presumably be encrypted.
Considering this architecture, should I be able to recover fully in the event of an issue?