This is a bit complicated, but it looks like your administrator didn't change your assigned role and assign user groups that match the new license. Essentially, your access to Business Central is determined by the type of plan (license) that you have - this sets permissions, your assigned role and your default Home screen. You can change your current role manually in My Settings, but if you are moved to another plan, such as moving you from the Business plan to the Team Members plan, you might see the old Home screen because your permissions were not changed.