Import data to Firestore with Firebase Admin SDK (NodeJS) doesn't work for all collections

gistfile1.txt

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: `https://${projectId}.firebaseio.com`
});

/* IMPORT DATA */
const testOrgName = "importedBrowserUser18";
const testUserName = "importedBrowserUser18";
const testUserEmail = "importedBrowserUser18@example.com";
const testUserPwd = "importedBrowserUser18";

const categories = ["Man", "Woman", "Adult", "Boy", "Girl", "Child", "Baby", "Food", "Hygiene", "Other"]

admin
  .auth()
  .listUsers()
  .then(listUsersResult => {
    const selectedUser = listUsersResult.users.filter(
      usr => usr.email.toLocaleLowerCase() === testUserEmail.toLocaleLowerCase()
    );
    if (selectedUser.length === 0) {
      const testOrg = {
        name: testOrgName,
        createdAt: Date()
      };
      admin
        .firestore()
        .collection("organizations")
        .add(testOrg)
        .then(createdTestOrg => {
          // eslint-disable-next-line no-console
          console.log("Successfully created new org:", createdTestOrg.id);
          admin
            .auth()
            .createUser({
              email: testUserEmail,
              password: testUserPwd,
              displayName: testUserName,
              emailVerified: false
            })
            .then(userRecord => {
              // eslint-disable-next-line no-console
              console.log("Successfully created new user:", userRecord.uid);
              const testUser = {
                name: userRecord.displayName,
                organization: admin
                  .firestore()
                  .doc(`organizations/${createdTestOrg.id}`)
              };
              admin
                .firestore()
                .collection("profiles")
                .doc(userRecord.uid)
                .set(testUser)
                .then(() => {
                  // eslint-disable-next-line no-console
                  console.log("Successfully created new user profile");
                  importProductsForTestUser(createdTestOrg.id)
                })
                .catch(error => {
                  // eslint-disable-next-line no-console
                  console.log("Error creating test user profile:", error);
                  process.exit(1);
                });
            })
            .catch(error => {
              // eslint-disable-next-line no-console
              console.log("Error creating test user:", error);
              process.exit(1);
            });
        })
        .catch(error => {
          // eslint-disable-next-line no-console
          console.log("Error creating test organization:", error);
          process.exit(1);
        });
    }
  });

function importProductsForTestUser(testOrgUid){
  const orgUid = testOrgUid
  admin
    .auth()
    .listUsers()
    .then(listUsersResult => {
      const selectedUser = listUsersResult.users.filter(
        usr => usr.email.toLocaleLowerCase() === testUserEmail.toLocaleLowerCase()
      );
      if (selectedUser.length === 1) {
        for (var i = 0; i < 5; i++) {  
          let productItem = {
            isDeleted: false,
            //organization: admin.firestore().doc('organizations/' + orgUid),
            createdBy: admin.firestore().doc('profiles/' + selectedUser[0].uid),
            createdAt: Date()
          };            
          productItem.category = categories[Math.floor(Math.random() * categories.length)];
          productItem.name = makeRandomName(10)
      
          admin
            .firestore()
            .collection("products")
            .add(productItem)
            //.doc(productItem.name)
            //.set(productItem)
            .then((newProd)=>{
              console.log("Successfully created test product");
            })
            .catch(error => {
              // eslint-disable-next-line no-console
              console.log("Error creating test product:", error);
              process.exit(1);
            });
        }
        process.exit(0);
      }
    });
}

function makeRandomName(length) {
  var text = "";
  var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

  for (var i = 0; i < length; i++)
    text += possible.charAt(Math.floor(Math.random() * possible.length));

  return text;
}