Is the object clean? The osmotic enchantments don't work if the item is already enchanted. Do you have the required obsidian totems?I keep pressing start enchanting, but it doesn't enchant the object.
The tops are totems.Don't you need obsidian totem blocks, rather than tiles? Your setup looks correct, but I'm not sure if those are the correct blocks.
I just did that again. It's weird, I press the start enchanting button and it blinks then turns off, without enchanting.Alright, I just looked it up to be sure and it says that you need two to twelve obsidian totem blocks, capped with a nitor. So switch out the tiles with totems and it should start working for you.