If you see a Password Mismatch alert on your account, you will not be able to make or save updates. This alert is a security safeguard designed to prevent unintended changes.
In most cases, this occurs when browser password autofill is enabled.
The browser inserts credentials automatically
A password manager attempts to override the active session
Hidden or cached credentials are applied during page updates

Turn off password autofill in your browser or password manager.
Common locations:
Chrome: Settings → Autofill → Password Manager
Edge: Settings → Profiles → Passwords
Safari: Settings → Passwords
After disabling autofill, refresh the page or log out and back into your account.
Once autofill is disabled, you should be able to make and save changes for your clients normally.