ARG Race Builder - Automatic Climb and Swim speeds for custom races
Custom races receive an automatic +8 bonus to the Climb and Swim skills associated with a Climb and Swim speed, although the speed itself does not show up on the sheet.
If the Climb or Swim traits are selected from the Racial Movement Trait selection screen, they do not add another +8, so I imagine it is related.
I also think it must be related to the speeds of the races not showing up.
OP lacked a race which is what is required to use any movement modes.