Just starting testing PL4. After clicking “Export to Disk” I select DNG and Export to a subfolder within the original folder. Doing this is resulting in two DNGs being exported: one in the subfolder with my custom suffix (DxOPL4) and another loose in the original folder which has the suffix _DxO. I assume there is some setting which I have wrong. The appearance of the two files is slightly different. Any help will be appreciated!
I am using a MacBook Pro, OS 11.4, Big Sur, 16 Gb ram.
In this export panel, you have selected 2 outputs (recognized with the blue square in front of the name):
One named JPEG to the subfolder DxO PL4
One named DNG which probably what you write "and another loose in the original folder which has the suffix _DxO."
So you should deselect the DNG to have only your jpeg in the subfolder.
You have the “JPEG” activated but on the right side it says under Action “Export as DNG…” - change that to Jpg and choose the destination folder you want and the Suffix you want.