I can help you with your missing transactions in QuickBooks Self-Employed (QBSE) when using a web browser, Burton. I'll elaborate on the details below.
First, please ensure that you are using the correct login credentials (username and password) on the web browser that you use for your mobile app. It's possible to log into a different account by mistake, which would explain why you can't see your transactions.
Next, once you've confirmed that you're using the correct account login, let's filter your Transactions menu to narrow down the results. The issue could have been due to the date filter not being modified accordingly.
Here's how:
- Navigate to the Transactions menu.
- Ensure that the Type and Account are set to All.
- Edit the transaction period and select All.

If you still can't see the transactions after checking your credentials and adjusting the date filters, consider logging out and logging back in. Additionally, clearing your web browser's cache or using a different browser could help resolve the issue.
Note: This article is for QBO, but the same principles apply.
Lastly, you can check out this article to keep track of your financial data when using QBSE: Export transactions and get reports in QuickBooks Self-Employed.
If there's anything else you need further assistance with managing transactions in your QBSE account, just let me know in the comments below. I'll gladly provide additional help at any time. Keep safe and have a great day ahead!