Minecraft – Why does this redstone circuit burn out

minecraft-java-editionminecraft-redstone

I'm testing a circuit with restone but came across a very odd behavior, so I isolated a part of circuit composed of a block with the NOT gate which has a lever attached to it. When I activate the lever, the torch of the NOT gate always burns out.

Why is that?

PS: If you didn't understand just look at this tutorial and look at the beginning of the tutorial (which is in the middle of the video).

Here's a picture:

what the heck!

Best Answer

As @fredley suggested, I crossed upon a well know bug. Creating a new world (or probably just change the position of the blocks) will solve the problem.