using StackNavigator, there is a problem with moving back to the screen, they start to duplicate and do not close. How can this problem be solved?
This is not a problem.
You can’t close screens in Thunkable.
That’s why they duplicate and Stack over each other.
then, will I go back to the previous screen so that it is not duplicated?
Hmm i’m not quite sure What you mean.
Can you explain a bit more.
Is there any way to make sure that the screens are not duplicated?
Not that i know.