Cutplot color mismatches with probe value (Flow Simulation)

Hi all,

In a velocity cutplot does the color scale mismatch with the probe value. This happened to me at multiple simulations. Can anyone explain how this difference is caused, how this can be prevented, and what value is closest to reality?

Attached the plot. For example, the probe that indicates 11.9 m/s is located in the light orange area, this sugges a velocity between 12.9 and 13.6 m/s.

Thanks in advance.