Evolution in time of the inclination (normalized to t_GR) of three different particles of the same system, which were Type-F particles in absence of GR and then were suppressed by GR effects. The blue and red curves represent the temporal evolution of the particles’ inclination with and without GR effects. The semimajor axis and eccentricity of the inner planet are a₁ = 1.32 au, e₁ = 0.56, and the orbit GR precession timescale is t_GR = 130 Myr. Left panel: the initial orbital parameters of the particle are a₂ = 20.74 au, e₂ = 0.42, i₂ = 43.30°, ω₂ = 108.35°, and Ω₂ = 233.28°. Middle panel: the initial orbital parameters of this particle are a₂ = 44.25 au, e₂ = 0.724, i₂ = 36.65°, ω₂ = 290.77°, and Ω₂ = 284.67°. Right panel: the initial orbital parameters of the outer test particle are a₂ = 160 au, e₂ = 0.93, i₂ = 38.39°, ω₂ = 287.95°, and Ω₂ = 279.02°.