Reproduction steps:
1. Open attached project (repro.zip);
2. Build a standalone development build;
3. Open the application;
4. Open the Profiler window and go to Memory part;
5. Change settings from simple to detailed.
6. Try to press Take Sample.

Expected results: sampled information is shown after pressing Take Sample button;
Actual results: nothing is shown in the profiler window.

Note: this is reproducible only sometimes, usually you need to try to press this button more times. Mostly reproducible on 5.5.0f3.

Reproduced on: 5.4.3f1, 5.5.0f3 and 5.6.0b2.