TextRenderer - my text won't show

So, simply adding Vao[0] and it works for you?
        I have one Vao for the text and one for the other object so 2 total. In the bigger code I had a Vao for every object that I specify vertex coordinates, color etc for. And now just added another one for the text. So that also solved the problem with the bigger code.

Is there something that gets implicitely used somehow?
      I don't know

Well, whatever it is that is happening behind the scenes, it was great of you to solve the issue. I assume it's now easy for the developers to spot the error.

Bless you. Unbinding the vertex array object also fixed TextRenderer rendering after using a shader for me too.
Thank you!