Nuendo 13.0.20 Maintenance Update

How does one go around reporting bugs in Nuendo, only via the forum? Features which were working in 12 seem to be broken in 13.

MPE is broken in 13 (working in 12 and Cubase): https://forums.steinberg.net/t/bug-note-expression-input-and-mpe-controller-issue/887005/2

There are a lot of other bugs popping up in 13 while working…handles disappearing, automation points disappearing etc.

Is there a proper channel to get the devs to notice this?