Invalid private key for encryption historic bug

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Nextcloud version (eg, 20.0.5): Nextcloud Hub 3 (25.01)
Operating system and version (eg, Ubuntu 20.04): I can't find this
Apache or nginx version (eg, Apache 2.4.25): nginx
PHP version (eg, 7.4): 8.0

I keep getting this message:
“Invalid private key for encryption app. Please update your private key
password in your personal settings to recover access to your encrypted

Is this the first time you’ve seen this error? (Y/N): No

I’ve read this:

Which seems to (might) describe what I remember of having done. However, I
have disabled the ‘default encryption module’ and the message persists. See pics below.

Personal settings > Personal > Security > Basic encryption module
“Your private key password no longer matches your log-in password.”
But, I have no idea what my private key password might be and I have
attempted to:
“Set your old private key password to your current log-in password:”
But, I have attempted to enter my ‘Old login password’ (with out knowing
what it might be so using my current login password) and my “Current login
password” to “Update Private Key Password” and (not surprisingly) this has
not helped.

Personal settings > Administration > Security > Server-side encryption
Is disabled and:
Personal settings > Administration > Security > Default encryption module
Is not selected.

The output of your Nextcloud log in Admin > Logging:

No server logs

Everything is working fine

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

No access to this

The output of your Apache/nginx/system log in /var/log/____:

No access to this