Canonically Darth Vader knew Ahsoka was still alive after Order 66, so why didn't the Inquisitorius know of her survival in Tales of the Jedi?
When they try to learn more about the pilot by tapping into the Force, Ezra realizes the pilot is the Sith Lord he and Kanan fought earlier. Meanwhile, Ahsoka learns something that terrifies her. She senses Anakin when she reaches out to the pilot — and Vader realizes that Ahsoka, his former Padawan, lives on.
Yes, I do. Anakin was attached to Ahsoka. They had a deep bond, and they were like brother and sister. Ahsoka was one of Vader's last remaining emotional attachments.
Later as Darth Vader he finds the crashed Venator and finds Ahsoka's lightsabers and thinks she is dead. In rebels he senses her on the Ghost and finds out that she is alive and later on Malachor is so fumed with the Dark side that he tries to kill Ahsoka and after an explosion thinks she is dead.
While resourceful and determined, Ahsoka walked from one trap into another, and was eventually apprehended. Anakin never stopped believing in her innocence, however, and eventually discovered that Padawan Barriss Offee was the true culprit.
None of the characters in either movie even mention or reference Ahsoka—despite her being a crucial part of Anakin's journey as a Jedi. Logically speaking, the obvious answer as to why Ahsoka isn't present is that she had not been invented yet during the release of the prequels.
Anakin had always struggled with abandonment even though he had left his mother willingly. Seeing Ahsoka leave was like a blow to the heart and his fear of loss is what Yoda and Obi-Wan feared would get the better of him. Years later, his spectre appears to Ahsoka and blames her for his turn to the dark side.
Anakin was less than thrilled to be assigned a Padawan in The Clone Wars animated film. Despite Obi-Wan's advice about how being a teacher was a privilege and obligation, Anakin wasn't into it. He was annoyed with Ahsoka from their first meeting. Anakin's reaction when Ahsoka said she was assigned to him was priceless.
After the Clone Wars and Order 66, Darth Vader always knew his former apprentice Ahsoka Tano was alive and that he would one day face her in battle - long before it happened in Star Wars Rebels.
The youngling clans would remain as one unit, living and training together, until the time came to go their separate ways as Padawan learners. The younglings who were not chosen to become Padawans were supervised by the Council of Reassignment.
Ahsoka's departure haunted Yoda for a long time; he felt extremely guilty and remorseful, partly for refusing to stand by her and partly for placing her on the path that led to her departure from the Order. In fact, his guilt was so great that the Dark Side attempted to use it against him, but failed.
Ahsoka had a boyfriend and his name was Nyx Okami.
Ahsoka, Anakin and Obi-Wan briefly met again before Order 66, intending to hunt down Maul together, but Anakin and Obi-Wan were called back to rescue Chancellor Palpatine. This would be the last Ahsoka would ever see either of them as friends.
That fact is later confirmed when the two have a conversation about Grogu's training, during which Ahsoka acknowledges their shared connection to Anakin Skywalker, Luke's father and Ahsoka's former teacher.
Fans have been dying for her to meet Luke on-screen for a long time, ever since their knowledge of each other was teased in the Star Wars book The Secrets of the Jedi. Here, it's hinted that Ahsoka inspired Luke to achieve greatness, with Luke himself mentioning that Ahsoka was his father Anakin's Padawan.
Affiliation(s) Ahsoka Tano was a Jedi Padawan till an infection caused her mind to be warped and turned to the dark side. She was later turned back to the light side by Anakin Skywalker, Obi-Wan Kenobi and clone Captain Rex.
With all that in mind during Rebels she speaks about regretting leaving the Order but she never speaks about not taking Mauls offer.
In the final scene, Anakin as Darth Vader finds one of Ahsoka's lightsabers and ignites it. Seeing the lightsaber itself, of course, would've reminded him of his former apprentice, but seeing the blue color would've likely reminded him of his old life as well.
The blue blades came as a surprise to audiences and to Ahsoka in Season 7. According to The Clone Wars executive producer Dave Filoni, the change was intended to represent the enduring master/apprentice bond between Anakin and Ahsoka.
Understandably hurt and betrayed by the Jedi — her found family and mentors — Ahsoka declines the offer, and leaves the Jedi Order behind to forge her own path. Not only does Barriss' attack on the Jedi reshape Ahsoka's story, but, given Ahsoka's departure, fuels Anakin's own disillusionment with the Jedi Council.
On the planet Mortis, Ahsoka falls victim to the dark side of the Force and confronts her Master, Anakin Skywalker.
The relationship between former Jedi Padawan Ahsoka Tano and Senator Padmé Amidala was a strong friendship between these two strong women. They grew acquainted with each other, considering each other as friends and met through their affiliation with Anakin Skywalker.
The Jedi Council's Rules on Attachments
The choice to leave his mother at a young age continues to haunt Anakin throughout his life. He is plagued by nightmares of her and visions of her fate. When he eventually saves her from a group of Tuskens on Tatooine, his blind anger at her dying state consumes him.
Canonically Darth Vader knew Ahsoka was still alive after Order 66, so why didn't the Inquisitorius know of her survival in Tales of the Jedi?
The story is Anakin was manipulated to the dark side by Palpatine based on fears of losing Padme and appeals to his desire power and agency, over his life and the galaxy as a whole.