Unable to log into yahoo mail

FYI: I JUST LOGGED INTO YAHOO MAIL USING CHROME

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Description of the issue:
ATTEMPTING TO LOG INTO YAHOO MAIL LOOPS BACK TO USERNAME/PASSWORD.

Exact URL of the website in question:

Did the issue present with default Shields settings? (yes/no)
YES
Does the site function as expected when Shields are turned off?
NO. SAME THING HAPPENS WEATHER ON OR OFF.

Is there a specific Shields configuration that causes the site to break? If so, tell us that configuration. (yes/no):
NO.
Does the site work as expected when using Chrome?
I USE FIREFOX & YES IT DOES WHEN USING FIREFOX.

Brave version (check About Brave):

Brave is up to date
Version 1.0.1 Chromium: 78.0.3904.108 (Official Build) (64-bit)

Have logged in and tested https://secure.fanboy.co.nz/gif/yahoologin.gif with shields=on, seems good.

Noticed if using a VPN, you may get issues (captcha requirements) tldr avoid a vpn as a test.