It happen if the brush is set to ‘Full Brush Tip’ in the Cursor setting under Preferences dialogue box. Change that to ‘Normal Brush Tip’, and you’ll get a clear circle even if you bring down the hardness slider.
‘Full Brush Tip’ will include all the pixels under the cursor. Basically, it is showing how far the falloff is happening, adjust the hardness slider to see.
‘Normal Brush Tip’ will show only the brush size and minus the falloff.
Beekeeper
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