This happens on other expense items also. I see the 2023 amount, I click on the pencil to update, the number I typed is there. I press continue, but the amount doesn't change on the list of expenses. I have logged off, deleted cache, logged back in, still does the same.
Start with logging out of TurboTax and clearing cache and cookies. When you log back in follow these steps to enter your rental income and expenses in the link below:
Logged off, cleared cache, logged back in, problem still there.
You can try another browser. Don't use Internet Explorer. If other browsers fail, try a different device. The worst case scenario would be clear and start over. See How do I clear and start over?