How to reproduce:
1. Create a new project
2. Open Window > Analysis > Profiler
3. Enter the Play mode to record some data
4. Exit the Play mode
5. In the toolbar located at the top of the Profiler window press the Save button
6. Load the saved data from the file by pressing the Load button
7. Set the Module details panel view to Hierarchy
8. Select any frame in the CPU Usage chart
9. Select any sample in the Hierarchy of the Module details panel

Expected result: All frames get highlighted in the CPU Usage chart
Actual result: Only the first frame gets highlighted in the CPU Usage chart

Reproducible with: 2018.4.27f1, 2018.4.32f1, 2019.4.9f1, 2019.4.22f1
Not reproducible with: 2018.4.26f1, 2019.4.8f1, 2020.1.17f1, 2020.2.7f1, 2020.3.0f1, 2021.1.0b11, 2021.2.0a8