Error Messages not displaying

But, I have to run in the debug mode and check each of the activity and the live value, In direct run I can’t see these things.
So in debug mode why these error message poup not comes now. It stopped the process where there is an error in the activity and make the red headers color.
Now how to work in debug mode if there is no error message popup display or error text.

I didn’t get any positive response from UiPath people @loginerror @Pablito @ovi

Earlier I have posted the same.

@Lahiru.Fernando @Palaniyappan kindly reply on this.