So, every now and then, I'll click something in a dungeon and it will say, "too far away."

But, when I get closer, clicking on it does nothing. This happens often, although sometimes things do work when I click on them.

Is this a bug or is it normal?

It depends on how you look at it.

If the cameras too far down it wont activate it and if its to high itll do the same thing. Also if your too close and looking down it might not work. Make sure you have updated to the latest version, it might help.

I look up and down and move back and forth. It's weird.

I'm in Direnni Tower right now. A lot of things to click, until I get close. And underwater.