Steps to reproduce:
1. open user's attached project
2. select object "Light Probe Group" from the Hierarchy
3. select different probes and double-click on "Light Probe Group" from the Hierarchy

Expected behavior: editor focuses on the selected Probe
Actual result: editor always focuses on only one particular Light Probe

Reproduced with: 5.5.0a6, 5.4.0p2
Not reproduced with: 5.3.6p2, 5.2.5f1

Note: see GIF's below.