Adi Gallia (Female Tholothian Jedi) was killed in previous episode, but now she appears in the Jedi Council. However, this is because the episodes aren't always in chronological order, and this episode takes place before the previous one.
When training the rebels on disabling destroyer droids, Ahsoka repeatedly produces "poppers" from her right side, despite not carrying any supply of them. They simply appear out of thin air.