Azure B2C Custom Policy - RelyingParty has invalid child element 'Endpoints'

Hi,

Previously uploading the SignIn.xml with child element <Endpoint> did not show any error but now uploading it returns the following error:

this is the signin.xml code below. The. documentation says Endpoint is a proper child element of RelyingParty, so what would be the issue here?

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TrustFrameworkPolicy
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06"
  PolicySchemaVersion="0.3.0.0"
  TenantId="{TENANT_ID}"
  PolicyId="B2C_1A_signin_cp"
  PublicPolicyUri="http://{TENANT_ID}/B2C_1A_signin">

  <BasePolicy>
    <TenantId>{TENANT_ID}</TenantId>
    <PolicyId>B2C_1A_TrustFrameworkExtensions</PolicyId>
  </BasePolicy>

  <RelyingParty>
    <DefaultUserJourney ReferenceId="CustomSignUpSignIn" />
    <Endpoints>
      <!-- points to refresh token journey when app makes refresh token request -->
      <Endpoint Id="Token" UserJourneyReferenceId="RedeemRefreshToken" />
    </Endpoints>
    <UserJourneyBehaviors>
      <SingleSignOn Scope="Tenant" EnforceIdTokenHintOnLogout="true" />
    </UserJourneyBehaviors>
    <TechnicalProfile Id="PolicyProfile">
      <DisplayName>PolicyProfile</DisplayName>
      <Protocol Name="OpenIdConnect" />
      <OutputClaims>
        <OutputClaim ClaimTypeReferenceId="displayName" />
        <OutputClaim ClaimTypeReferenceId="signInName" />
        <OutputClaim ClaimTypeReferenceId="signInNames.emailAddress" />
        <OutputClaim ClaimTypeReferenceId="objectId" PartnerClaimType="sub"/>
        <OutputClaim ClaimTypeReferenceId="tenantId" AlwaysUseDefaultValue="true" DefaultValue="{Policy:TenantObjectId}" />
        <OutputClaim ClaimTypeReferenceId="isForgotPassword" DefaultValue="false" />
        <OutputClaim ClaimTypeReferenceId="IsPasswordValid" />
        <OutputClaim ClaimTypeReferenceId="forceChangePasswordNextLogin" PartnerClaimType="passwordExpired" DefaultValue="false" />
      </OutputClaims>
      <SubjectNamingInfo ClaimType="sub" />
    </TechnicalProfile>
  </RelyingParty>
</TrustFrameworkPolicy>