I'm facing an issue regarding to my Lightroom keybord shortchuts on my mac. Before, when i was pressing "+" key, slider affected was Brightness, but now is Tint. Does anyone have an idea of how can i change it back? Thank you.
Before, when i was pressing "+" key, slider affected was Brightness
I assume you mean pressing + affected Exposure (if you are talking about Lightroom Classic, are you?).
To change the behavior of the + and – keys to work on a different slider, first you click on the slider name, and then the + and – keys will affect that slider. So, if you click on the word Exposure, then the + and – keys affect Exposure, and similarly for other sliders.