Grapher changes the color of text making it very hard to read

I have no idea how this was triggered, but every time I write something in the equation box, the color of the text changes from white to black, making it very hard for me to see. After writing, the app ignores all commands to change the color of the text. Is there a way of fixing this?

Grapher 2.7

Catalina 10.15.3

Here is a video I made: https://imgur.com/a/LfivvVz