It's also being addressed here in the Beta club
https://www.chess.com/clubs/forum/view/when-will-dgt-boards-work-properly-in-the-new-play-interface
It's also being addressed here in the Beta club
https://www.chess.com/clubs/forum/view/when-will-dgt-boards-work-properly-in-the-new-play-interface
Per the announcement, the old interface is disappearing this year.
However, the new interface does not support playing with the DGT board (details).
Is there a plan to support the DGT board with the new interface?