At Golf N' Stuff, after hearing Miguel's response to a question Samantha relayed to him coming from Señor Octopus, she moves a pretzel piece towards her mouth with her right hand and immediately the camera angle changes to the pretzel being in her left hand when she takes a bite.
When Johnny is facing the city council-which includes Daniel-about the Cobra Kai being banned from the tournament for life, they tell Johnny that Cobra Kai is banned because of the unethical behavior by Kreese Silver and Mike Barnes in 1985, but the pictures they show Johnny from that tournament are actually from the year before, which show Daniel fighting Johnny and not Barnes.