The top panel shows the STIX timeseries in five energy bands. The middle and bottom panels show the flare evolution in 1700 Å and 171 Å, respectively, during each of the non-thermal peaks. Overlaid on top of each image are the reprojected thermal (4–10 keV, red) and non-thermal (15–30 keV, sky blue) contours of the STIX images using the MEM_GE method. Panels a, b, c, and d show the appearance of one, two, or three non-thermal sources at different locations during this complex ribbon formation whereas panels e, f, g, and h show the hot loops and plasma outflows.