most DxO / LR users will generate linear DNG from DxO to be processed by LR, not TIFF - you should ask this question on DxO forums there are more than one user who uses both tools combined
Well, I just learned from DxO support that if you change the file name in any way when importing from the camera card (as in Lightroom, Photo Mechanic, whatever), you cannot export an image from Lightroom to DxO- it will not be able to find the original file if it is changed from the name the camera gave it on capture. This is not useful, as far as I am concerned: you have to keep the meaningless camera-generated name rather than changing it to something useful/recognizable.
What DxO forum(s) do you find useful/suggest could provide suggestions?
Thanks