I'm using a Mac Mini.
OS Sonoma 14.3.1.
Google Chrome Version 122.0.6261.112.
I'm experiencing the same issue. Would love some assistance for LastPass here as it seems like it's a bug.
I have had the same issue on a Windows platform with Edge. Tried this, but the site that is reverting to wrong password information is not saved to the browser's PW manager.
The most common reason for this happening is that LastPass data was inadvertently saved to your browser's bult-in password manager. Check that list, and remove any erroneous LastPass entries.