Hi Alzena Shakira,
Thank you for reaching out to us on the Microsoft Q&A forum.
We tried from our end; it's working fine for us. Kindly follow below steps.
Step 1: In the upper right corner of the screen, select the Settings icon and choose Session details.
Step 2: In the Power Apps session details dialog, select Instance url value and copy it for use later in the exercise.
If you are still facing any issue, please let us know in the comments. We are glad to help you.
If the information is helpful, please Accept Answer so that it would be helpful to community members.
Thank you.