RJ and the other Rangers knew of Flit, despite none of them having ever encountered him before.
During the fight between Dai Shi and Grizzaka, Dai Shi's throne vanishes between shots.
It is never really explained how or when RJ got the Wolf Morpher in the first place.
Lily's motorcycle vanished after she and the Rangers went to Jungle Master Mode.
When Porcupongo grows, the wooden pier he is on somehow manages to hold his weight.
Carnisoar's Shadowguards looks like cyborg versions of Bai Lai and Carden, yet no connection is made to those characters.
The Shark Sabers seemed to be very bendy and floppy during Casey's first battle with them.
Camille says "No, Jarrod is my master and I want you to train him...", and Dai Shi makes no attempt to correct Camille, despite repeatedly denying his Jarrod title elsewhere.
The pizza the rangers are eating in the final scene is clearly not the same pizza RJ brought to the table only seconds prior.
After being forced to demorph by Jellica, Lily was no longer wearing the Solar Morpher (which is normally shown every time a Ranger is seen demorphing).
How does Master Swoop know so much about the Rangers if he didn't show up until after Bai Lai and Carden attacked? It's bad enough he snuck into RJ's without setting off a single sensor...
It appears as though every single customer in JKP put extra cheese on their pizzas (unlikely unless the food is bland to begin with), every single one of them had a freshly refilled shaker (also unlikely), and each one noticed their pizza was now inedibly salty all at exactly the precise same time (absurdly, sitcomically unlikely).
Technically, Josh shouldn't have been able to afford the kite. He used what little money he'd had originally on the broken video game... And then there's taxes. In addition, unless it's a resale shop, no toy store would ever sell an item directly out of a window display.
Technically speaking, there's no way that the fabric from a kite would be enough on its own to wipe away all the monster's slime. Given its thinness and size, it should have been completely gunked up immediately. Instead, when it's finally pulled away, it doesn't even look WET.
For some reason, the kite turned into a red sheet after Casey morphed.
If Carnisoar can go back and change the timeline so easily, why doesn't just go back and destroy the Rangers before they got their powers? Similarly, how does he know that changing Jarrod's youth to make him more evil won't lead to him becoming SO bad that he's never accepted into the Order of the Claw's academy, and thus, never gets to free Dai Shi?
Camille brings up Pangolin to Dai Shi as the perfect monster to attack the city. But considering he just had a successful attack against the Rangers and wasn't defeated, why would she have to have to be specific? He should know Pangolin. And it's not like she has loads of monsters waiting around, monsters of the day on this show are made to order and used until gone.
The Rangers don't seem to be the least bit surprised by Gacko's return from the dead.
All outside shots of Dai Shi's temple show the sky there to be purple and very cloudy. But when Camille and Naja's fight takes them outside, the sky is blue and only lightly cloudy.
How did R.J. know Casey gave Fran a raise if he was at the fly flshing tournament?
Monsters & Mutants, Classics, Martial Arts