Just to clarify, you are saying that the RAW edits to L1010574.DNG were done by DxO's software, is that correct?
If so, then I think you might be misunderstanding the feature, as Adobe's DNG converter only knows what to do with the adjustments made by Adobe's software, it would ignore adjustments made by DxO's RAW processor.
How did those DNG files on the contact sheet get created? Are they straight out of a camera or were they created from another RAW format using some software? When you took the screenshot that you posted, was "Enable RAW Rendering" set to on?