What happens to the vampire that received Field training if it burns?

Hello fellow methuselahs,

Vampire A with SUP disciplines plays Field training on vampire B teaching him inferior discipline and making him anarch.

If vampire B changes sect, Field training burns.

What happens to his teached discipline? Does vampire B loses the anarch sect but keeps his new discipline?

If vampire B equips Writ of acceptance, field training burns. What happens to vampire B if he loses the Writ? Would he revert to anarch? Would he keep his discipline?

Thanks for your insight.

Field training
+1 stealth action. Requires an Anarch.
Unlock this vampire, choose a Discipline they have at superior, and put this card on another ready non-titled vampire you control. The attached vampire is considered Anarch and gets +1 level of the chosen Discipline. If the attached vampire changes sect, burn this card. A vampire can have only one Field Training.

Writ of Acceptance
Equipment.
The vampire with this equipment is considered a Camarilla vampire.

Thanks!