I made a witch - Briness Ayloud on 2019-02-28 by EFUSL2 count - just after the perk was given the polymorph token. The second update that changed it to 2/day didn't update my character's token. I've tried resetting the perk via crafting menu, and leveling from 5 to 6 also hasn't updated. I've not tried delevelling to fix it.
I'm not looking to get the character fixed at this point, but I wanted to make sure the issue was known for future updates that change sorcerer tokens.
The best solution is to have a DM throw your old token in the trash and reset your perk, it will generate a new one.