One of the Web API controller call is being cached. Old dll and symbols are being used, so when I debug I get "The breakpoint will not currently be hit. No symbols have been loaded for this document." warning. As soon as I hit other Web API controllers in the same debugging session the latest dll and symbols are used so I can debug.
I am not using any caching or GAC on this project. I have tried clean > rebuild, restarting VS 2015 and restarting the computer without resolution.
This is a .NET Framework 4.5 project.
Any help is appreciated.