I tested a bit more when putting myself in Romance (My main genre is Fantasy) My comic will only show up when you specifically look for "romance" genre under Others tab. If you only click on the Others tab, you won't be able to find my comic. If you have a comic that has a main genre that belongs under Other tab, your comic should show up in the Others tab like how it's used to be + any other sub genre under the Other tab you specific it as. (Ie: Action/Post Apocalypse, etc)
So for example: Your comic is in Scifi and Drama, if Scifi is your main genre, your comic will show up in the general Other tabs (and when people specifically look at the "Scifi tab) but I doubt it will show up in Drama.
A bit complicated, but I can see why. It's to prevent people taking up both top spot on the top 5 of each category.