Lost in the curve: Investigating the disappearing knots in blazar 3C 454.3 Efthalia Traianou, Thomas P. Krichbaum, José L. Gómez, Rocco Lico, Georgios Filippos Paraschos, Ilje Cho, Eduardo Ros, Guang-Yao Zhao, Ioannis Liodakis, Rohan Dahale et al. (14 more) A&A, 682 (2024) A154 Published online: 15 February 2024 DOI: 10.1051/0004-6361/202347267