Comparator sometimes doesn't update when crafting with the Crafter

When the Crafter gets a short Redstone impulse(at most 4 redstone ticks) and the correct Construction(It didn't always work) is built, then the Comparator keeps the signal.

What I expected to happen was...:
The Comparator updates and stops being powered.

What actually happened was...:
The Comparator doesn't update and keeps being powered.

Steps to Reproduce:
1. Build the Construction, which is shown in the image.
2. Place a Recipe in the Crafter.
3. Press the Button.
4. Don't open the barrel. This will update the comparator.