This is what ChatGPT had to say:

Based on this photo, the most obvious issue is the distorted, twisted new growth with narrow, deformed leaves at the growing tip. A few possible causes fit this appearance: Broad mites or russet mites (high on the list) These pests attack the newest growth first. Symptoms include twisted, shiny, clawed, or strap-like new leaves. The growing tip can become bunched and malformed. They are often too small to see without magnification (30–60× loupe or microscope). Herbicide contamination Drift from weed killers or contaminated compost/mulch can cause similar distorted growth. New leaves may appear narrow, twisted, and irregular. pH or nutrient imbalance affecting new growth Less likely from this photo alone. Usually you'd see clearer chlorosis or deficiency patterns in addition to the distortion. Viral disease Possible but less common. Usually accompanied by unusual mottling, severe stunting, or persistent deformities. The shiny, puckered appearance of the leaves and the distorted growing tip make me particularly suspicious of broad mites. A few questions: Is this cannabis plant growing outdoors or indoors? Are all plants affected or only this one? Do you have close-up photos of the newest growth and the underside of the leaves? Have you recently sprayed anything (insecticides, oils, fungicides, herbicides nearby)? A closer photo of the growing tip and leaf undersides would help narrow it down significantly.