I have a 1x Microshift Advent x system with Dropbars. I replaced the shift cable housing and cable and now it shifts perfectly, however it downshifts twice in the middle of the cassette. This did not happen before I replaced the cable and housing.
E.g. from gear 5 (21t) I will press the down shift button, and it will go to gear 3 (15t), skipping gear 4.
I have tried googling this problem but all I can find is about shifting up twice, but that is not what's happening.