Yeah, "resonance structure" is basically code for "I have two ideas of how this should look and they are both wrong". It is also possible to have what BadAndy described, where there are multiple ...

What is Karma Resonance in Boruto: Two Blue Vortex? Boruto and Kawaki’s meeting in the 9th chapter of the manga, he was on his way to Konohagakure to stop the Shinju from attacking the Shinobis ...