Hey again! I’ve been there.
Since it happened with iCloud, until you changed your password, and now Podcast, even still after entering your new password, I’d say it’s probably a conflict with your local and iCloud Keychain, (Most likely).
If you know all of your account passwords, and/or, have them stored in iCloud on another device and/or have a Time Machine backup, I’d say resetting the local keychain will probably fix it,
So if you do have a copy of your passwords:
Open Finder, select “Go” on the top menu, hold “Option” on your keyboard, (Only then you will see “Library” under the Go menu.
Select “Library”, then open the “Keychains” folder.
Select All by pressing Command A.
To de activate the current keychain, while saving a local copy, while all is selected, on the top menu select “File” then “New Folder (With Selection)”, press “Enter on the keyboard after entering your Admin password if asked.
Restart your Mac.
Note that you will be prompted to re enter all of your account passwords again, (Only one time, that’s it), after that, it should work okay.
In my experience, if using iCloud Keychain on other devices, the passwords should once again sync, if not for whatever reason, you should only need to enter them once to save and not again.
Anyhow hope that helps!
