Binned tangential shear profile of the O26 cluster, incorporating the updated identification. The solid line, with yellow shading, represents the mean model and the 68% uncertainty region. The uncertainty in the model also includes intrinsic scatter, while the plotted error bars account only for shape noise and large-scale structure. The dashed cyan line represents the maximum likelihood estimate (MLE), which is biased. The triangle denotes the 2σ upper limit.