The world hardly generates surface caves, and no ravines. (experimental)

In the experimental cave and clips mode, hardly any caves with entrances on the surface are generated. And all caves with contact to the outside world are flooded from y = 62.

There are no more ravines either. I loaded a seed whose structures I know and couldn't find a single canyon.

Hopefully this will be improved again. It would be a shame if these iconographic features of Mincraft were lost.

Note:

This error is similar to MCPE-125379, but is not identical, as the cave entrances and the ravines are centrally named here.