How to reproduce:
1. Download the user-submitted data capture(capture.pdata)
2. Create a new Unity project
3. Import the Profile Analyzer package
4. Open the Profile Analyzer window and import the data capture
5. Set the thread to 'Main Thread'
6. Select 'EditorLoop' from the Marker Details section
7. From the top chart select Frame 289
8. See the Marker Summary chart on the right(3.74 to 3.74)

Expected result: marker summary either has only one bucket or all the buckets contain the same frame
Actual result: marker summary contains many identical buckets, but only one of them contains the selected frame

Reproducible with: 2018.4.20f1, 2019.3.7f1, 2020.1.0b3, 2020.2.0a5
Could not test with: 2017.4.38f1(package unavailable)

Reproducible with package versions: preview.6 - 0.4.0, preview.1 - 0.6.0