Cannot use Alt/Option command with MAC in SketchUp

Just 2 days ago, I was unable to use MAC Alt/Option key to work with SketchUp. Does anyone know how to solve this issue?

@Reddi Please refer to the following post SketchUp for Schools Login Changes for G Suite Users

Tori: As far as the Login changes, why would they only affect MAC users? All PC users don’t have similar problems. It must be some sort of Auto Update in Sketchup that affect MAC users. I use one with Big Sur. But if is affecting others MAC OS users in exactly the same way. What can we do to correct this issue?