Kerbal Space Program

I'm towing an asteroid. I set up a maneuver node, to be in the retrograde+normal+radialout direction. When I right click on the asteroid and click "target center of mass", every time I click "target center of mass" the blue vector that points in the direction of my burn changes. You can see the problem here https://i.imgur.com/1btuMmE.png where the maneuver vector has a component in the radial in direction in the bottom left of the screen of 280.798m/s , but the blue maneuver vector is (correctly, this is the direction I want) having a component of -280.798m/s in the radial in direction. Clicking "target center of mass" on the asteroid seems to toggle the navball between showing each one.

Version 1.12.3 Windows 8.1