This appears to be a bug, but as an ESDF gamer, I am unable to remap my WASD keys to ESDF as the "E" key exits the prompt to remap the key.
Obligatory DirectX information:
I have been tinkering with this and can confirm that contract information is either being lost once the player enters the VAB/SPH, loads a save, etc. Glad you're working on this bud. Such a helpful little utility mod.