ReSharper Format on Save for CMake project

I can't seem to get ReSharper to format on save (using .clang-format) to work on my CMake based project. 

I checked the log and it says this:

19:24:12.392 |I| CleanupOnSaveHandler          | :1                 | Cleanup on save handler queue document D:\repo\vdf-parser\vdf_parser.hpp, main project file vdf_parser.hpp, shared project file number 2 (if more than 1, no cleanup would be performed)
19:30:36.778 |I| CleanupOnSaveHandler          | :1                 | Cleanup on save handler queue document D:\repo\vdf-parser\test\main.cpp, main project file main.cpp, shared project file number 2 (if more than 1, no cleanup would be performed)
19:34:21.790 |I| CleanupOnSaveHandler          | :1                 | Cleanup on save handler queue document D:\repo\vdf-parser\test\main.cpp, main project file main.cpp, shared project file number 2 (if more than 1, no cleanup would be performed)
19:34:24.397 |I| CleanupOnSaveHandler          | :1                 | Cleanup on save handler queue document D:\repo\vdf-parser\test\main.cpp, main project file main.cpp, shared project file number 2 (if more than 1, no cleanup would be performed)