Those aren't bugs, just oversights. They forgot to include alternate versions of the screens with those features altered. It doesn't affect gameplay or the flow of logic in the slightest.
Edit: There is a problem with the sundial which I found on a subsequent test. Restarting and looking at the face of the sundial before solving the lamp puzzle seems to rectify it.
I'm sorry, but if you didn't make the game you don't know what a bug is for that dev. An issue with a game, that effects a player, in an unplayable way, or for any reason at all, or is just something that is a possible mistake/glitch, or time constraint, issue, goes under the umbrella term bug. I think your taking it as a negative. We don't know what is a time, choice, or playing issue, which is why people let the dev know. It's not a bad thing.
The way I define "bug" is that it has to actually negatively impact gameplay. I'd prefer to call it a "glitch" because we talk about benign glitches all the time, but the term "bug" seems inherently bad to me, like it bugs you. I realize that people define these terms in different ways, but I don't see why it should be dev-specific.
That said, there was an actual bug in the game, and I'll admit I behaved horribly in this comment section and made only feeble attempts to rectify it. I'm not deleting anything because I need to take responsibility for it, but I apologize that you have to read those comments.
