Can't edit image after having converted it

I am NLP 2.1. Once I convert an image, click apply, then if I want to make adjustments within NLP, I am prompted to convert it again and the edit part of the program is greyed out, as if I am converting the image for the 1st time.

When posting about Image Conversion Issues, please include the following information:

  1. Which version of Negative Lab Pro are you using?

  2. If using DSLR scanning, please include: 1) camera make/model, 2) lens make/model, 3) light source make/model

  3. If using film scanner, please include: 1) scanner make/model, 2) software used for scanning, 3) settings used for scanning

  4. Please add the conversion you are having difficulty with, along with a short description of what you are seeing wrong with it.

  5. It’s not required, but it’s very helpful if you can provide a link to the original RAW or TIFF negative before conversion. If you don’t want to share this file publicly, you can also email it to me at