Continuity mistake: In the original Full House, the attic that Becky and Jesse lived in is completely different from the one in this series. When D.J. shows Ramona her room where Nicky and Alex stayed, it's on the opposite side of the attic and is much smaller than the one in the original.
Continuity mistake: When Jesse and Becky first arrive at the Fuller house, in the closeup Becky's left hand is holding out the duffel bag (similar pattern color on her shirt) in front of her, as she and Jesse poke their heads through the doorway, but in the next wideshot it's her right hand holding out her black and white suitcase in front of her.
Continuity mistake: When Lola introduces her pet tarantula, the spider is black with orange stripes. When Jackson and Ramona accidentally leave the enclosure open and the spider escapes, it is still a black spider with orange stripes. When the spider is crawling on Max, it is a black spider with bright yellow stripes.