Second example of a spicule connected to a QSEB, along with the evolution of the photospheric magnetic field. Top row: Sequence of H-beta wing images at 7 s cadence, in the same style as Fig. 3. Coloured pixels mark QSEB detections, following the colour scheme of Fig. 2. Bottom row: Evolution of the magnetic field B_LOS. The dark red contours encapsulate absolute field strengths stronger than 80 G, and light red and blue contours encapsulate |B_LOS|≥40 G (∼7σ). The cyan colour marks the QSEB pixels detected by the k-means model. Several of these frames are duplicates, as the cadence of the CHROMIS dataset is more than twice as high compared to the CRISP dataset. A movie of this event is available online.