Stokes V LSD profiles (thin black lines) and best-fitting ZDI profiles (thick red lines). Profiles observed between September and December 2019 (Season S₁ in Table 4) are shown in the left-hand panel whereas the profiles observed between August and October 2020 (Season S₂ in Table 4) are shown in the right-hand panel. The stellar rotation cycle computed using the first observation (BJD = 2 458 738.128) as a reference time and assuming a rotation period of 34.4d (see Table 3) is given on the right-hand side of each observation. The ±1σ error bars are indicated on the left-hand side of each profile.