Note encrypted via meld-encrypt not decrypting

What I’m trying to do

I have an encrypted note which is synced via icloud on my Windows machine and it suddenly stopped decrypting out of nowhere.

Things I have tried

I’ve used the same password as initially set.
I’ve downgraded Obsidian to an older version and tried decrypting

Can anyone help? The note is very important. The error it throws is “Decryption Failed”