Can't register or login in new developer sandbox

[spire-phil]

When attempting to register a new customer using the sandbox store, it appears that the request from the localhost server to the big commerce v2 customers management api is timing out. I receive the following error:

ERROR [HPM] Error occurred while trying to proxy request /stores/{REDACTED}/v2/customers from localhost:3000 to https://api.bigcommerce.com (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)

After manually creating a new customer through the big commerce management console and using the configured credentials to login, I receive a successful login response, but the customer data is returned as "null". The payload is returned as :

{"message":"Successfully login!","body":{"data":{"customer":null},"cookie":"Shopper-Pref=REDACTED; Expires=Fri, 23 Apr 2021 17:41:17 GMT; Path=/; HttpOnly"},"status":true}

I have configured my api token to read/write Customer and Customer Login scopes.

Steps to reproduce:
Create new sandbox store using the link in the root's README.md
Follow the steps in the root's README.md to configure .env file and add required routes.
Attempt to register a new customer.
Manually create new customer through big commerce web console
Login with configured credentials
Examine response

[ansariswag]

Hi @spire-phil, the customer of response data shouldn't be null on the latest updates. Also, the customer register works as expected.