Other mistake: Jackson, and Max are in bed together due to a sickness. When Matt brings Tommy to them you can hear Max say "Say your line" to Jackson. (00:21:55)
Revealing mistake: When Shannon walks into the kitchen and gives Stephanie a hug, in one shot of the highchair where Tommy is sitting there is now a doll.
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. (00:06:30 - 00:18:20)
Other mistake: When Becky comes down the stairs, Stephanie says "Hi Lori" which is the name of the actress (Lori Loughlin) who plays Becky. (00:01:00)
Continuity mistake: When Max and Jackson are in their room when Max finds out Stephanie left, his trombone keeps changing position between shots.
Moving Day - S1-E2
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. (00:07:00)
Our Very First Show, Again - S1-E1
Audio problem: After Stephanie takes back the flash drives she gives to Max and Jackson, Max tells D.J. that he knows all the bad words. When we hear him say "Donald Trump," his lips do not match it. (00:06:40)
The Not-So-Great Escape - S1-E4
Continuity mistake: Jackson is holding a paper. D.J. says "I think we can agree both of you being punished is fair." The shot changes and he is no longer holding the paper. (00:21:40)
Our Very First Show, Again - S1-E1
Continuity mistake: When DJ is talking to Steve in the kitchen, the calendar in the background for chores changes between shots. (00:23:00)
Moving Day - S1-E2
Continuity mistake: After Stephanie says "gone horribly wrong." She crosses her arms, the shot changes and her hands are now on her hips. (00:22:30)
Continuity mistake: When Jackson hits Max's iPad with a basketball it falls to the floor, but when Max sits back down after breaking the mariner it's not there.
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.
Moving Day - S1-E2
Continuity mistake: In Full House, Nicky and Alex's room is spacious but when D.J. shows Ramona the room here, it is tiny and they can hardly fit into it. And it is on the other side of the bedroom.
Continuity mistake: The shape of the staircase in the living room is slightly different to the original one. In Full House, the lower half of the stairs before the midway landing was shorter (roughly 5 steps) and the upper half was longer (about 7 steps) where as in Fuller House, the lower half is now the longer section (about 7 or 8 steps) and the upper section after the midway landing is shorter (roughly 5 steps).
The Not-So-Great Escape - S1-E4
Continuity mistake: Jackson rips the paper he is holding and gives half to Ramona, later on in the scene the paper is ripped differently. It then changes back to the original way.
Our Very First Show, Again - S1-E1
Continuity mistake: After Jessie has Tommy dance on the counter there are placemats on the counter that keep changing position each shot for the entire scene.
Our Very First Show, Again - S1-E1
Continuity mistake: At the beginning of the episode when everyone is sitting at the table, Tommy's bottle is on his highchair in some shots and on the table in others.
Partnerships in the Night - S1-E11
Other mistake: Stephanie hugs Kimmy, then Max comes in. When we see DJ and Matt, in the background you can see the hugging repeats.
Our Very First Show, Again - S1-E1
Continuity mistake: In Full House Niki and Alex's room is big enough to fit multiple children's beds. When Ramona is given the room here it is barely big enough to fit a bed.
The Not-So-Great Escape - S1-E4
Continuity mistake: When Max is choosing what puppy he wants, Tommy's stroller can be seen in the background. The shot changes and the stroller has moved.
