How to reproduce:
1. Open the user's attached "Physics Update Test Project.zip" project
2. Open the "SampleScene" Scene
3. *Added by Melv: Go to Physics 2D Settings and change Simulation Mode to "Update" as the project it set to "FixedUpdate"!
4. Make sure the Console window is visible
5. Enter Play Mode
6. Press the "Pause" button after entering Play Mode
7. Press the "Step" button until "trigger enter" message appears in the Console log (See attached "1274820_repro.mp4")

Expected result: The next log after "trigger enter" is "LateUpdate" (Update method is called before the OnTriggerEnter2D callback)
Actual result: The next log after "trigger enter" is "Update" (OnTriggerEnter2D callback is called before the Update method)

Reproducible with: 2020.1.4f1, 2020.2.0b2
Could not test with: 2018.4.27f1 and 2019.4.9f1 (Simulation Mode is not supported, Auto Simulation property was used)