Yes, I do. My files do seem to be in OneDrive, but my encrypted ones will no longer open.
This should not happen because of an update!!
I'm glad you found your documents.
If the encrypted documents in question are in OneDrive, you'll have to download them to your computer in order to decrypt them. If you wanted to decrypt them while they were still in OneDrive, you would have to store the decryption key in OneDrive. You certainly wouldn't want to do that!