Steps to repro:

1. Open attached project;
2. In the Project folder right mouse button click on 'test' folder and choose Open.

or

1. Create new project;
2. Create new folder in Project tab;
3. In the Project tab right mouse button click on recently created folder and choose Open.

Actual result:
Nothing happens (see attached gif video).

Expected result:
Folder with its contents should be displayed after opening it form the context menu.

Notes:
- Reproducible in 5.5.0b7, 5.4.1f1, 5.3.5p2, 5.2.2p4;
- Reproducible on both OSX 10.11.6 and Windows 10;
- Reproducible for any project browser view's layout.