What's the reason for the "Change at-risk password" warning?

[grb]

@Evnia Welcome to the forum!

The reasons why a password is flagged have been summarized above, and in the feature request thread (requesting the option to disable/dismiss the warnings):

@grb

1. Does the zxcvbn tool deem the password to be “weak”?
2. Has the password been re-used within the user’s vault (or in an organization vault)?
3. Does the password appear in a breach known to HIBP?

In your case, it seems that the reason is #2 from the list above:

@Evnia

Edit: I think this might be happening, because i have logins for websites as well as for mobile apps that use the same account, i.e. the amazon.com login is the same as the amazon.android login.

One work-around would be to store both URIs (amazon.com and amazon.android) in the same login item. If there is reason you prefer not to do that, then I would suggest that you explain your use-case by posting a comment in the feature request thread.