Basically as mentioned in the thread name.

For years now, texture arrays weren't working with packed mips. This is extremely aggravating, as it makes the feature to be somewhat incomplete. Right now on a 16k by 16k texture I am losing half a mip chain due to this.

For those curious:

On tier 2 tiled resources you will not be able to have packed mips if you specify more than 1 array slices in the tex2D desc. A packed mip is a mip whose dimensions are lower that of the size of a single tile (64kb).

I was wondering if anyone was able to come up with a reasonable workaround that does not kill the performance completely, and produces the same results.

Thanks.