One reed suddenly stopped speaking!

When I was playing my Wakker concertina the other day, one reed, which is F# on the left-hand side, suddenly stopped speaking.

I dismantled the end to fix it. I was surprised to see this...

A hair had been sucked under the reed tongue! I've never thought that a hair can prevent reeds from speaking.

I could remove the hair easily, so it took only fifteen minutes to fix it.