Combined with Tectonic minecraft:jagged_peaks become really messy.

[murao-kun]

This issue happened in instance of NeoForge 1.21.1 with latest version of Tectonic mod.

[KdotJPG]

It may result from Tectonic depending on the 4x8x4 interpolation to mask away the sharpness of the noise that's carving up the terrain in that shot. I'm hoping to have these types of situations improved in the first beta release, which will include the irregularly-sampled interpolator ( => fewer things need to be forced out of interpolation to achieve the mod's purpose), and yet further with per-mod configurability.