FCPX 1.2 opens snapshot

i have a library and default project.
i regularly make snapshot this project as timeline and versions backup and rename it to make name shorter.
so I have 5 snapshots.
when i start fcpx it opens snapshot but not the default project.

is it normal?

maybe someone knows how to open library without open a project?

A snapshot is your project, just at a later point in time during your editing. Your original project along with all snapshots you've made should appear within your library. FCPX opens the last project (or snapshot) that was being edited at the time you closed the app. You can double click any project or snapshot to open it in the timeline. You can also open any library at any time ( file menu- new library - locate ) and the project that is in the timeline does not change unless you select another project. Multiple projects can be selected and you can use the arrows to the left side of the timeline to toggle between projects in your timeline history.