Hi Mark, thanks for the comments. DxO has been and still is my favorite photo program for several years, and it just keeps getting better and easier to use as time goes on. I wish they would abandon the database thing and concentrate all their efforts totally on the core program, however.
I understand and appreciate what you said about how DxO protects images but in this case (to overwrite a file) I intentionally wanted to do it for convenience.
The RAW originals are golden and never touched; I do all the editing and save the result in jpg (usually) and then distribute the final products in the folders where they are stored for viewing, printing, or sharing.
Yesterday I had an image open in DxO and decided after saving it that it needed a touch of adjustment to straighten the horizon. So I did so, and re-saved it with the “overwrite” option selected; since that didn’t work I had to delete the first jpg and rename the second one. Why does the option to overwrite the image pop up if it doesn’t work?