Episode(s) of spongebob aired without vocals

When i was ~7 years old, i was watching nickelodeon on my families old bulky tv, and for a reasoni could not understand, the following episode of spongebob that played completely lacked any vocals. All I could hear the sound effects, and the music in the background. The bumpers and commercials all had their normal sounding audio, but it was just this one spongebob episode (or potentially section of episodes?) that lacked it. At the time, i thought i had pushed some sort of mute button on my remote that muted specifically voices and nothing else, and just decided to stop watching.

I feel like i should also specify that this was not Reef Blowers, but rather an entirely separate episode. I remember for sure that a portion of the episode had taken place in the crusty crab.

From what i can remember, this occurred during around 2014 - 2015.



Ive tried looking around online for anything related to this, but i keep on coming up with Reef Blowers and unrelated animation errors.