Closure phases (band 4) on the three closure triangles that probe extended non-ring emission trivial closures – to AA-AX-PV (top), ALMA-PV-NOEMA (middle), and ALMA-SMT-KP (bottom) – with fits from the final image reconstructions for the types of imaging algorithms – Bayesian (Comrade), CLEAN (GPCAL), and the RML method (ehtim). Other methods yield qualitatively similar fits where available. Strategies to fit the extended non-ring emission to the 2021 closure phases are presented in Georgiev et al. (2025) and Saurabh et al. (2025).