"Doesn't work at all"?
What does happen? What do you see (or not see) when you try to use the brush tool? Describe in detail.
This happened to me last night and has happened a few other times. When I
select the brush tool and adjust which element I want to change, when I
start to actually brush, nothing happens. Let's say I want to
increase/decrease the saturation of one part of my image. It simply doesn't
do it. I have even tried selecting Show Selected Mask Overlay, to see if
that will help, but it doesn't. Usually everything in LR works perfect.
But, sometimes it seems it gets in a groggy mood and doesn't want to
Is flow or density set to zero?
No. I never change the flow or density. The flow is always on 80 and the
density is always set to 100.