How to reproduce:
1. Create a new project
2. Open the Profiler (Window->Analysis->Profiler)
3. In the Profiler controls section change it to record the Editor
4. Enable the recording in the Profiler
5. Enter the Play Mode

Expected results: No errors are thrown
Actual results: The "UnityException: GetInt is not allowed to be called during serialization" error is thrown

Reproducible with: 2019.4.14f1, 2020.1.12f1
Not reproducible with: 2018.4.28f1, 2019.4.13f1, 2020.1.0a1, 2020.1.11f1, 2020.2.0a1, 2020.2.0b10, 2021.1.0a4

Notes:
- There are two "GetInt" exceptions that are thrown:
UnityException: GetInt is not allowed to be called during serialization, call it from OnEnable instead. Called from ScriptableObject 'ProfilerWindow'.
See "Script Serialization" page in the Unity Manual for further details.
UnityEditorInternal.Profiling.MemoryProfilerModule..ctor () (at <20b79eb59c0f467d8b1106b2110bc953>:0)
And:
UnityException: GetInt is not allowed to be called during serialization, call it from OnEnable instead. Called from ScriptableObject 'ProfilerWindow'.
See "Script Serialization" page in the Unity Manual for further details.
UnityEditorInternal.Profiling.AudioProfilerModule..ctor () (at <20b79eb59c0f467d8b1106b2110bc953>:0)