Chapter 1: The Mandalorian - S1-E1
Revealing mistake: Mando kills the squid dude shutting the door of the cantina by shooting the control switch. The control board bursts into sparks, but all the LEDs are still active and shut down only a second after the direct hit that punched a hole through the box and caused flames. (00:02:25)
Chapter 1: The Mandalorian - S1-E1
Revealing mistake: When Mando mows down hostiles with the laser cannon, the leftmost guy on the roof of the second building goes down only well after the gun has gone past his position. (00:33:30)
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 ★