Question about signal

I am confused, I bumped into this problem two times.

I am outputting a color or a letter (basically an icon), in this case an "A"

https://preview.redd.it/lbp95o62cayd1.png?width=1100&format=png&auto=webp&s=ddf26035ef26ea7cda4fa81ab881cd477208cc6f

The speaker though does NOT work with this setting.
(Strangely enough, if I set the speaker condition to to ANYTHING = 1, then it works)

https://preview.redd.it/zm14msszbayd1.png?width=638&format=png&auto=webp&s=142cc0d6c8dd14d6d7cae4cb37db801f36572da7

The signal is arriving and seems correct, what is my issue here?

https://preview.redd.it/jnnuswpbcayd1.png?width=906&format=png&auto=webp&s=5f1c512fc364962ea875e9ae2cd1752f2f07d4ae