My bank register is coming up out of date sequence. How do I get the chronology back, with the last entry at the top of the list?

Try opening your QBO account on any private/incognito browser.

Thanks for posting here in the Community space today, @phyllis4. I can certainly help you sort the transactions in your bank register. 

Follow these steps to proceed:

1. Go to the Accounting menu.
2. Select the Chart of Accounts tab.
3. Select the View register link of the bank account you want to sort.
4. Click the drop-down arrow next to Date. 

See the screenshot below for your visual reference: 

For more details about sorting your register in QuickBooks Online, see this article: Find, review, and edit transactions in account registers.

If the issue persists, you can try what Fiat Lux - ASIA has mentioned above to check if this is a browser-related issue.

In addition, I suggest reconciling your accounts every month. This is to effectively monitor the growth of your business and manage your income and expenses. For the step-by-step guide, kindly refer to this article: Reconcile an account in QuickBooks Online. It also contains instructions about reviewing your reconciliation report.

If you need more help with managing your bank transactions, please let me know and I'll get back to you as soon as I can. Take care, @phyllis4!