Circular Gaussian components super-imposed on 43 GHz CLEAN images. The legend of each panel indicates the epoch at which the observations were obtained. The beam of each epoch is displayed in the bottom right side as a filled orange circle. The contour levels correspond to −1%, 1%, 2%, 4%, 8%, 16%, 32%, and 64% of the intensity peak, except in November 2010, where, due to lower data quality, the contour levels were adjusted to −10%, 10%, 20%, 40%, and 80% of the intensity peak. The epochs are convolved with the same circular beam, with a radius of 0.24 mas. This size was obtained by geometrically averaging the beam sizes of all displayed epochs. A summary of the beam parameters and peak fluxes is provided in Table F.2. Each feature is labelled based on its date of emergence, with the lower number indicating an earlier ejection time. As a centre of alignment, we always used the north-westernmost feature inside the core region, which we labelled as ‘C’. We note that feature ‘Q1’ seems to split into two (labelled ‘Q1a’ and ‘Q1b’) in August 2013; similarly, ‘Q2’ seems to split into two (labelled ‘Q2a’ and ‘Q2b’) in September 2017. These splits might be due to improved sensitivity in these epochs or variations of the intrinsic brightness and size of the jet feature or a combination of the two. A summary of the characteristics of each feature is provided in Table F.4.