Other mistake: The weaponsmith is smelting Beskar in a furnace in the first episode and the metal is liquid without any sort of incandescence. In the credits roll of episode 3, the artwork shows it red-hot, and in the season 2 finale we see it actually getting red-hot.
Other mistake: Din tracks Grogu down through his chain code and other bounty hunters do the same throughout the series. As stated elsewhere, chain codes were implemented in the year 19 BBY AFTER the end of the Clone Wars and Order 66. We know that Grogu was spirited away from the Jedi Temple during the Slaughtering of the Younglings, so he was already a fugitive by the time they came about. No way they could stop and register him with the Empire while he was on the run from them.
Chosen answer: They could be just like wrinkles from age, like the elderly Togruta in the Zygerrian slaver arc in The Clone Wars series, as Ahsoka is considerably older than her animated appearances. I think there is probably a character design/stylisation aspect to it as well - the other Togruta we've seen in live action, Shaak Ti, has four segments or folds in her lekku that were not visible in her Clone Wars appearances, so it would seem the character design in Clone Wars and Rebels reduces such features.
Sierra1 ★