I'm sure it's the same. I don't remember any of the Z Warriors sensing Shin in the Boo Arc, Gohan was unable to sense Kibito as well. The only time one of them could sense Shin was in the Universe Tournament, Goku tries to sense Kibitoshin, but was unable to find him again.In the BoG movie, as well as in its Super "remake", it's said Beerus' chi can't be felt by simple mortals due to him possessing a God chi, right? Is the same valid for the Kaioshins too? I mean, Beerus' chi not being sensible by mere mortals also means Kaioshin's isn't? But iirc Kaio-sama's chi could be sensed by Goku (he teleported to his planet quite a few times), so is Kaioshin's chi more akin to Kaio-sama's or Beerus'?
And I think Goku sense Bubbles when he teleported to North Kaio's planet. I don't think Goku was able to sense North Kaio when he first met him. After all, Goku thought Bubbles was North Kaio.