If you are a Salesforce Certification Practice Test student of mine, and have recently re-taken one of my practice tests on Udemy, the default results that display are from your first attempt. Here is how to access the results of your most recent attempt:
For someone who retakes the test, the results page will look like this
To see the most recent results, you can minimize the expanded results box via the arrow on the right hand side (https://screencast.com/t/UVGoIHib).
Then, scroll to the top of the page and expand the most recent results entry (https://screencast.com/t/Tq0Vkpxcyz8).
Here’s a short screencast video showing the process: