Unable to authenticate Convex with next auth when provider is Credentials.

export const {
  handlers: { GET, POST },
  auth,
  signIn,
  signOut,
} = NextAuth({
  pages: {
    signIn: "/auth/login",
    error: "/auth/error",
  },
  events: {
    async linkAccount({ user }) {
      await updateUserEmailVerification(user.id as Id<"users">);
    },
  },
  callbacks: {
    async signIn({ user, account }) {
      if (account?.provider !== "credentials") return true;

      if (!user.email) return false;

      const existingUser = await getUserByEmail(user.email);

      if (!existingUser?.emailVerified) return false;

      return true;
    },
    async session({ session }) {
      console.log(session);
      const privateKey = await importPKCS8(
        process.env.CONVEX_AUTH_PRIVATE_KEY!,
        "RS256"
      );
      const convexToken = await new SignJWT({
        sub: session.userId,
      })
        .setProtectedHeader({ alg: "RS256" })
        .setIssuedAt()
        .setIssuer(CONVEX_SITE_URL)
        .setAudience("convex")
        .setExpirationTime("1h")
        .sign(privateKey);
      return { ...session, convexToken };
    },
  },
  adapter: ConvexAdapter,
  ...authConfig,
});

declare module "next-auth" {
  interface Session {
    convexToken: string;
  }
}

export const {
  handlers: { GET, POST },
  auth,
  signIn,
  signOut,
} = NextAuth({
  pages: {
    signIn: "/auth/login",
    error: "/auth/error",
  },
  events: {
    async linkAccount({ user }) {
      await updateUserEmailVerification(user.id as Id<"users">);
    },
  },
  callbacks: {
    async signIn({ user, account }) {
      if (account?.provider !== "credentials") return true;

      if (!user.email) return false;

      const existingUser = await getUserByEmail(user.email);

      if (!existingUser?.emailVerified) return false;

      return true;
    },
    async session({ session }) {
      console.log(session);
      const privateKey = await importPKCS8(
        process.env.CONVEX_AUTH_PRIVATE_KEY!,
        "RS256"
      );
      const convexToken = await new SignJWT({
        sub: session.userId,
      })
        .setProtectedHeader({ alg: "RS256" })
        .setIssuedAt()
        .setIssuer(CONVEX_SITE_URL)
        .setAudience("convex")
        .setExpirationTime("1h")
        .sign(privateKey);
      return { ...session, convexToken };
    },
  },
  adapter: ConvexAdapter,
  ...authConfig,
});

declare module "next-auth" {
  interface Session {
    convexToken: string;
  }
}