You have been here longer than me, so I suspect what you are running into is way beyond what I know. I am less than 1 year in here. I use Keychain and onboarded through Ecency, so as long as I was logged into Keychain I could reveal my active, posting, and memo key (not owner), and as long as I had my Ecency password, I could reveal all four keys (not master password). Not sure if that helps, but I am sure someone has run into your issue before on Steem since it has been around so long. If I think of anything I will reply back here. Good luck!