Opening a Smart Materials Classic screen in the E&PI sub menus typically asks for this license. Expanding this branch of the menu tree will not change the license, only if a related screen is opened from there. The same applies if you open a screen of the Bill of Materials or Requisitions dashboards in Smart Materials Web.
The Bill of Materials and Requisitions dashboards in Smart Materials Web contain pages which existed already before version 10. These screens will continue to ask for a BIR license. See the chapter Smart Materials Business Intelligence Reporting (MBI) - BIR.
Whenever an E&PI or BIR license cannot be retrieved from the license pool in the mentioned cases, the software tries to get a different license. This is described in Details on Licensing Workflow and Components.