In the meantime, can you profile using the web profiler? And if the target platform doesn’t support it (ie html5) then maybe you get useful values when running on desktop?
The samples for Main are not showing because it is outside the screen to the right of the other sample windows. Untick AsyncLoad, GraphicsWorker, log, Remotery. This should show the samples of the Main thread and they should update as you select the different samples on the timeline.
Yes, that works thank you! It’s not as useful as the in-built profiler however, as it will be difficult for me to match up specific frames to in-game events. But I can use it for general performance measurement.