Sculk sensors triggered during a paused state

I was in creative mode testing the new sculk sensors. However, after I placed down a sculk sensor, I placed down a sign right by it. Normally, the minecraft game pauses (this was in singleplayer). This did happen, however the noise that is played when a sculk sensor receives a vibration was played, despite still being in the 'pause state'. After I finished writing the sign, and the game became unpaused, the animation for the vibration happened, but the sound did not accompany it. For some reason, this is not consistent as I have tested this bug several times. Some of the times, there was the vibration noise whilst other times there wasn't (check attached video).