To reproduce:

1. Open the attached project (link in edit)
2. Build and Run for Android (Make sure Autoconnect Profiler is enabled)
3. In the game, accept the Terms and Services
4. Attach the Profiler to the game
5. Select Window -> MemoryProfiler
6. Press Take Snapshot
7. Observe that the Profiler and the game freeze

Expected: nothing freezes when taking a snapshot of the memory

Reproduced in 2017.4.2f2, 2018.1.9f2
Could not test in 2017.3 and earlier, the build fails due to some gradle error
Could not test in 2018.2 and 2018.3. The project makes heavy use of Legacy Network which in 2018.2 is no longer supported and throws errors, which prevent building the project