Left: TS map of the RoI. Regions with significant, un-modelled contributions are shown in brighter colours. The dashed line indicates the position of the Galactic plane. Our source, located in the centre of the RoI, is shown as a yellow spot, as depicted in the inset. Right: comparison of our source localisation with the previous Fermi 4FGL-DR4 catalogue position, overlaid on the Chandra X-ray image. The catalogue position is shown with red ellipses and the position from our study in blue. The solid ellipses indicate the 68% c.l. and the dashed ellipses the 95% c.l. The Chandra source CXOU J110926.4–650224, depicted as the dark spot, lies within the 95% c.l. contour, consistent with our localisation of the Fermi source.