How many movies have Dianna Basso and Tracy-Ann Oberman collaborated on?

They have worked on 3 movies together! Their first movie together was Thomas & Friends: Tinsel on the Tracks (2016) while their highest rated movie together was Thomas & Friends: Extraordinary Engines (2017). They have not worked together since Thomas & Friends: Christmas on Sodor (2017). They are most known for their animation films together.