The transactions downloaded to QuickBooks is dependent on the data provided by your bank. Let's login to your bank's website to verify that these transactions are posted.
Once completed, let's manually update your connected bank account. Here's how:
If you're getting the same results, we'll need to download the missing bank transaction manually from your bank's website and import them into QuickBooks using WebConnect.
You can check this article to learn more about the WebConnect feature and the detailed steps: Manually upload transactions into QuickBooks Online.
I'll be around to help if you have any other questions about downloading bank transactions. Have a good one.