Filament interaction with the hot arcade above. Dotted white curves denote hot loops A and B seen in XRT and AIA 131 Å. The BHF develops in their vicinity. Contours indicate 50 and 90% levels of the 5–10 keV and 11–15 keV STIX sources reprojected assuming 0 and 50 Mm height (full and dash-dotted lines, resp.). Bottom row: MGN composites of 131 Å (red), 193 Å (green), and 171 Å (blue). (k) slit position for the time–distance plot (Fig. 11a) in white. An animation of the MGN composites with the slit position during 13:10–13:30 UT is available online.