visual profiler: "No Timeline" message when profiling openCL

I am trying to profile openCL over GTX780 with visual profiler. when i trying to run analisys, it seems to run the application, but no results are visible. In the results i am getting message “No Timeline”.
any ideas?
Thanks alot

I wonder if they simply stopped supporting OpenCL profiling some time ago?

Generally when this happens in CUDA adding a cudaDeviceReset() at the end can help.