If you're open to exiting an novel theories on why this happens, check out Dr. Robitaille liquid sun: https://www.youtube.com/watch?v=qUZ0Obpihbc
The summary is that the sun is actually metallic hydrogen, which forms a lattice similar to layers of graphite. This both explains the black-body radiation of the sun and provides a mechanism to explain sunspots and the solar maximum and pole flip: sunspots are non-hydrogen elements that are excluded from the metallic hydrogen lattice and push it upwards as they migrate to the surface and are ejected.
And God! What a convoluted theory full of ideas nobody can test.
Metal hydrogen is a liquid though, it doesn’t form a crystalline structure like an actual metal.
It isn't surprising that there is messy magnetic field when Sun is pure conductor.
Metallic hydrogen probably has something to do with magnetic field on Jupiter.
Here's a related Veritasium episode: "The Bizarre Behavior of Rotating Bodies"