I ran into the same issue and resolved it by first resetting my Visual Studio keyboard mappings:
Tools > Options > Keyboard > Reset
Then going into the ReSharper options and applying the scheme:
Resharper > Options > Visual Studio Integration > Apply Scheme
Update:
For VS2017 onwards:
Tools > Options > Environment > Keyboard > Reset
For Resharper 2017.2:
Resharper > Options > Environment > Keyboard & Menus > Keyboard Shortcuts > Apply Scheme