AD B2C TOTP Custom Policy Keep Social account signed-in

Question

The application I am working on has a sign-in custom policy and afterwards the user has access to other custom policies.

Issue: If the user signs-in with a social account, like google, the sign-in in the next custom policy is prompted instead of utilizing the already existing session. This issue does not happen when the user signs-in with a local account.

The following is one of the custom policies that the user has access to, after being signed-in. TOTP Custom Policy: https://github.com/azure-ad-b2c/samples/tree/master/policies/totp

This is my userJourney: https://pastebin.com/GVMk5nVP

In order to enable TOTP for any social login I added the following claimExchange:

          <ClaimsExchanges>
            <ClaimsExchange Id="AADUserReadUsingAlternativeSecurityId" TechnicalProfileReferenceId="AAD-UserReadUsingAlternativeSecurityId" />
          </ClaimsExchanges>

AAD-UserReadUsingAlternativeSecurityId Tech Profile: https://pastebin.com/UQ3nPWAJ

I have read from a Microsoft forum, someone fixed this issue by adding objectId to a specific tech profile, but didn't go into much detail on how it was fixed (also the above tech profile alrady seems to have the objectId).

Source: https://learn.microsoft.com/en-us/answers/questions/291284/azure-ad-b2c-custom-policy-how-can-i-keep-the-user