Problem
Instruments\' Time Profiler is stripping all symbols except system libraries from my app, despite the fact that I have disabled this behavior in
Have been facing the same and stumbled upon this thread.
I realized that I first profiled the app with release build and after changing the scheme in Xcode for the same app, the profiler was still unable to symbolize. I have tried all obvious solutions you mentioned above but in vain.
The profiler somehow is still referring to the first build (release build)'s settings and hence it is not able to symbolize. So, I just changed the app's bundle identifier for testing purpose so that a new app is created altogether for profiling purpose. I could check the code where leaks exist now.
Try it out and let me know if this works for you too. Still pondering over why Instruments is failing to symbolize though.