Ciao, my brush dimesion doesn't match the cursor diameter

[Graphicamenti36377899jsv4]

ciao, don't know what happened but starting today my brush dimension doesnt fill the cursor round anymore (see picture). It's a big problem for me beacuse i can't use it for photo postproduction anymore...
Can someone please help me? Thank you in advance

 

[Ares Hovhannesyan]

Try to change Brush size option in Preferebces_>Cursor.  If this not help - Reset Preferences.

[Peru Bob]

Try resetting the tools and/or preferences.
To restore preferences quickly using a keyboard shortcut:

Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac OS) as you start Photoshop. You are prompted to delete the current settings. The new preferences files are created the next time you start Photoshop.
Note: Using the keyboard shortcut, preference files for custom shortcuts, workspaces, and color settings will also be reset to default.

from here:

https://helpx.adobe.com/photoshop/using/preferences.html#restore_preferences

[Jeff Arola]

What version of macOS are you using?

Most likely you have the System Pointer size (Cursor size) set to something other than Normal.

Apple>System Settings>Accessibility>Display>Pointer>Pointer size

older macOS