Upon user registration session is not getting created

Hi, We are creating login and sign up page in Swadesh. We take mobile number and otp from the user while logging in, if user is not registered Registration page will open. Once user submits registration form he will redirect to home page , but user will not be logged in, session is not getting created. Also registered user is also not able to login.

Here is the SIT environment URL : Swadesh

Disable the “Is Email ID required for signup” in platform and in API payload request payload we should not send the email.