When revising my presentations on procedural aspects in opposition in order to take into account T 1842/18, I came across T 184/17.
https://www.epo.org/law-practice/case-law-appeals/recent/t170184eu1.html
T 184/17 takes a contrary stance to T 1042/18.
In Point 4.3 of the reasons, the board asked itself whether the new objection of lack of IS still falls under the principle as expressed in G10/91,