Out of good faith, I went back and watched the episode where the scan came from.
Afterwards, Tanjiro managed to push through Battle Spirit (the guy just kinda moves his arms and that's it), but like, Genya is near a tree still incapable of moving from Zohakuten's Battle Spirit. Then the screen cuts away, then comes back, and everyone's fighting normally. We don't even know how long Genya sat there paralyzed for, if Zohakuten deactivated his Battle Spirit (Yes, characters in kny can control their own Battle Spirit), or if Genya locked in. Take a guess, LaserPrecision.