Selected CO isotopologue intensity channel maps from the disc around MWC 480, along with best-fit channels obtained with DISCMINER and their corresponding residuals. For comparison, isovelocity contours from the model upper and lower surfaces are overlaid on the data channels as solid and dashed lines, respectively. The ellipses in the background represent millimetre dust rings (solid) and gaps (dashed) as reported by Law et al. (2021a), projected on the upper emission surface of the corresponding model. Kink-like features apparent to the eye are marked with arrows. The radial location of the most prominent kink in ¹²CO is highlighted by the dotted purple ellipse. The beam size is shown in the bottom left corner of the top left panel for each isotopologue.