Why did Qui-Gon's ghost never appear to Anakin/ Vader to offer guidance?

[Brehcepticon]

Let's get on the horn and pitch this idea to Disney. They can make a whole movie filling in all the plot holes. (Again.)

 

[Rekkapryde]

 

[Standing on business]

Wasn’t Qui gon playing both sides too? He knew everything count dooku knew and that the Jedi council wasn’t aware of.

 

[Soymuscle Mike]

Wasn’t Qui gon playing both sides too? He knew everything count dooku knew and that the Jedi council wasn’t aware of.

No. Dooku says that IF Qui-Gon knew what Dooku knew he might've joined him.