Hi all. I have been having an issue for some time where the impact of the adjustment brush is not visible. When I select the brush and change exposure to minimum value and start painting, I see no change. I do see the adjustment pin but I do not see any impact to image visually. My Tool Overlay setting is set to Always Show. I am trying to learn more local editing skills but am dead in the water here.
Your brush may be on "erase" instead of "paint"; or else the brushing Flow may be set very low.
It doesn't make any difference how strong the sauce is, if the dish is getting more or less no sauce put on!
LrC maintains two alternative brush setups, A and B, each with its own independent size / feathering / flow settings. You can switch between using A brush, B brush, or a third Eraser setup as you work. The result of that is a 'mask'. To review this mask as a colour overlay, vs a preview of the adjustments which are being applied according to this mask, use O key shortcut.