The engine Templates project appears in the "My Projects" interface

I accidentally opened FP_FirstPersonBP in the Engine Templates file。 Then this item appeared on the my projects interface。 After deleting this project, Engine Templates project will disappear。 After repairing the Templates project, this project will appear again on the my projects interface。 How can I get back to normal? Let FP_FirstPersonBP disappear in my project interface。 Thank you!