Cannot navigate with keyboard after opening Material Browser by clicking view name or "Open Material Browser" button

Steps to reproduce:

• Open a 3D project
• Create at least one more material, so that you have two in total
• Double click one of the materials to open it in Material Editor
• Click "Open Material Browser" button in Material Editor or click Material Browser view/tab to open the view (see attached recording)
• Try navigating the materials with keyboard arrow keys
• -> does not work. Need to click somewhere in Material Browser to get it working