edit.GoToDefinition (F12) unsetable with Resharper

I have resharper installed and have tried this on both base keyboard configurations you can set resharper to (Visual Studio, and Resharper.) If I go to tools/options/keyboard and assign the keyboard F12 to edit.GoToDefinition and save it won’t work. I love resharper but this is the command I use the most and it’s killing me that it can’t be set. Any ideas how to get around this? I’ve tried:

1) Resetting all keyboard settings from internal/export options and re-configuring

2) Switching VS Versions

3) Reinstalling Resharper