Forty-three GHz VLBA images of TXS 0506+056 on Nov 11, 2017 (left panel), and May 4, 2018 (middle panel). Apart from the different beam sizes, the resolved structure is not significantly different. Image parameters are given in Table 1. The distance between the ticks on the axes is 1 mas, corresponding to 4.78 pc at the distance of TXS 0506+056. Right panels: surface brightness profiles (mJy beam⁻¹ vs. mas, relative to the slice mid-point) for two slices transverse to the jet, as shown in the middle panel.