On systematic effects in the numerical solutions of the JIMWLK equation Salvatore Calì, Krzysztof Cichy, Piotr Korcyl, Piotr Kotko, Krzysztof Kutak and Cyrille Marquet Eur. Phys. J. C, 81 7 (2021) 663 Published online: 29 July 2021 DOI: 10.1140/epjc/s10052-021-09380-6