If you have an ability on any hotbar (seemingly even the ones you tell it to ignore) miqo will look at using that ability either as part of the rotation or as needed (such as healing).
If the slot its in isn’t bound, miqo will try to switch the main bar to that bar using keybinds to switch bars, so it can trigger the ability. Switching bars isn’t optimal and will slow down ogcd ability usage.
I’m not sure about hidden bars but I know the bot works even with the UI off, at least till it looks for a chest to open…she doesn’t like that.
I would suggest just testing it out on a dummy. If it doesn’t work, try making the bars super small?