Preconditions and environment

• Magento version - 2.4.6
• Configurations - allow guest checkout from admin
• Ability to enter email address in the checkout then password field will appear and then submit will give this error inside the Firefox browser console

Steps to reproduce

1. Navigate to Store front as a guest user
2. Go to product page from home page or via category page
3. Add to cart a product
4. Proceed to checkout via minicart or from the cart page
5. Enter email address of an existing customer and then add password
6. Click login button

Expected result

Firefox console without an error

Actual result

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.