I know of 4 Optic 6’s shipped mid year from Tower Hobbies.
They all have the “Countdown Auto Destruct” feature.
Software version 1.1

If you have version 1.1 I would think about contacting Hitec support.

As for Tower Hobbies, they must have a warehouse full of the
Auto destruct models.

One would think that Hitec would contact Tower Hobbies and other
distributors and recall them for a firmware update.

There is a Legal issue of liability here. A now known problem
that makes aircraft fall from the sky at full power is scary.