Hi, I just joined a new campaign and I’m trying to create a new character using the yuan ti pureblood race but when I’m in the character builder that race is not showing even though the DM is sharing us his sourcebooks that includes the volos guide to monster, instead, i can only choose the yuan ti from the mordenkainen book. I look it up and the yuan ti pureblook should be available in the volos book as a legacy race. I can choose the other races from volos like aasimars, kenkus and tritons but not the yuan ti pureblool.

You and the DM should both double check that your Account Entitlements are in sync: (https://www.dndbeyond.com/account/marketplace). If that doesn’t fix it have them turn content sharing off and back on again.