Error with the Touch Calligraphic Brush

That could be a GPU Preview problem, check by switching to CPU Preview (Cmd or Ctrl E).

Or a Large Canvas problem. Copy that path, create a simple A4 or Letter Document, paste the path (give it another color than white) an see if it is still offset.

Hello Adobe Community. I would like your help troubleshooting an apparent issue with the calligraphy brush in Illustrator. The problem I'm having is that when I draw the stroke I need, it doesn't appear centered with the brush line, but rather slightly separated, as shown in the image.