Explorer’s Guide to Wildemount Classes Missing

I owned a bunch of licenses and double checked that the guide of Wildemount is there. When creating classes, I don't see the classes as an option any longer. Found a previous article(https://www.dndbeyond.com/forums/d-d-beyond-general/bugs-support/204937-chronurgy-and-graviturgy-are-missing-from-the#c5) on this, with no resolution. Is this a known bug being worked? Would like to use the chrono wizard class for my new campaign. 

All the third-party subclasses currently don't work with the new classes, probably for licensing reasons.

You need to either use them on the old versions of the classes (turn on legacy in the builder and scroll down), or homebrew them onto the new classes.