Over the course of the 2 seasons of rebels, there are a few examples of Ezra's force abilities to either communicate or to influence non-intelligent life forms in the galaxy. One example can be found in the episodes named "Empire Day" and "Gathering Forces" which you can see on the wikipedia site here and spefically mentiones that Ezra is being trained in this regard and uses the force to However in one of the latest episodes of Rebels from Season 3,
He is not able to communicate with the spiders on the world Atollon where the Bendu lives and mentions that he does not have that ability.
Is this an oversight on the Rebels writers? Or am i not remembering something that would help clear up this question?