Do you have your 24-word seed that your Ledger made you write down?
Hi SopaXT - Yes I do have my 24-word seed written down from my Ledger.
What do you suggest? A Ledger reset/reconfiguration? Any help and assistance would be great appreciated.
Try resetting and re-initializing your Ledger from that seed (however, as you seem to have a lot of BTC, I'd recommend getting a new one for that instead of resetting the old one, just in case).
Also, do you remember what account did you generate that address from (it's possible that you're just using a different one)?
e.g. "Accounts > My Account", etc?
Does it say the same right now?