Sequences and 2022.2b8 scripting API changes

A related question - is Sequences-2.0.0-pre.2 ready for testing? I upgraded a project from 2022.1 to 2022.2b8 and the “Sequences” window only shows the top level master sequences - all the subsequences are gone. I also cannot click on any sequences to activate them.

I am guessing the way sequences are put together is different now given also the API change. Did the upgrade process fail perhaps to convert from the old format to the new one?

(UPDATE: I created a post for this over in the beta area Sequences corrupted during upgrade from 2022.1 to 2022.2b8 )