highlight clipping showing as block

[gramtot 0]

When I bring a .dng file into AP it immediately displays the blown highlights in black.  I cannot seem to get rid of these black marks in the highlight areas and they carry over when the .dng is developed and saved.  I have my develop persona set for "take no action" for tone curve and exposure bias, but it doesn't seem to correct the problem when these settings are changed.

[DWright 262]

Hi gramtot,

 

Welcome to the forum.

 

Is the .dng file native to your camera or was it converted into the dng file using a different app, can you also please send me a screenshot showing what is happening.

[gramtot 0]

Dwright,

 

I have just experimented by having Affinity bring in the same photo directly from the disk original and it worked without the blown highlights appearing as black.  Before I was using ON1 Browse to open the image in AP.  I don't know what the difference is, but the problem appears to be on the ON1 side!  Thanks for standing by to help!  I'll do more experimenting to see if I can narrow it down before contacting ON1.