in sculpt mode the circle disappears when brushing the circle i'm talking about is this blue circle



whenever i starts brushing with any brush in sculpt mode the circle disappears
but i need it to be revealed. is there any way to keep it revealed

i'm using blender 2.82a
As of July 2020, there does not seem to be an option in Blender to display the sculpting circle cursor during a stroke.
This seems like a huge oversight and workflow regression in my opinion. Sculpting with pressure-dependent radius feels like I'm trying to paint using an invisible brush.
However, there is a code contribution on developer.blender.org that adds this functionality back in:
⚙ D6324 Sculpt: Sculpt plane cursor preview (https://developer.blender.org/D6324)
It appears to be in need of work. They want some code changes, as well as explanations of why it's a positive change.
If you'd like to see this feature added, and you know how to code or just have time to spare, maybe consider leaving a thoughtful comment or helping with the maintenance on the linked code.

As a workaround, I've been enabling &quot;Falloff Opacity&quot; under &quot;Cursor&quot; in the brush settings. Running this line in a Python Console view will do it for all brushes: [[setattr(b, 'use_cursor_overlay', True), setattr(b, 'cursor_overlay_alpha', 5)] for b in bpy.data.brushes.values()].