Repro steps:
1. Download both *.snap files, attached by the user
2. Create a new Unity project
3. Install the Memory Profiler package
4. In the Editor, go to Window > Analysis > Memory Profiler
5. In Memory Profiler, Import and Open the downloaded *.snap files one at a time
6. Once both files are opened in Memory Profiler, press "Diff"

Expected results: Opened snapshots are compared, no errors are thrown
Actual results: The snapshots are not compared, an "Exception: bad object" error is thrown in the Console tab

Reproducible with: 2019.3.0a1, 2019.3.10f1, 2020.1.0a1, 2020.1.0b6, 2020.2.0a1, 2020.2.0a7 (Memory Profiler preview.4 - 0.1.0, Memory Profiler preview.2 - 0.2.3)
Could not test with: 2018.4 as the user didn't provide a project and the version of Editor in which snapshots were made does not matter only in 2019.3 and newer