Exposure X added layers and brushing options that give users greater control, but these can cause confusion when Exposure X is launched as a Photoshop plug-in. This does not affect versions of Exposure released prior to Exposure X because they did not support layering or brushing.
When opening an image in Exposure X from Photoshop, there are visible artifacts like smudges and regions (or the whole image) that can’t be edited. These artifacts stay visible even if a new preset is applied.
This happens because because Exposure automatically applies the last used preset to the image when it's run from Photoshop. This includes all layers and brushing effects.
There are two ways to clear these artifacts: press Reset to start from scratch, or find and delete the artifact layer.
Pressing Reset (or Control-R) will clear all presets and adjustments. You can then apply new presets and adjustments.
Delete Artifact Layer
If you want to keep the prior preset, you can find the layer that contains the artifacts and delete it in the new photo. This video link shows an example.
Notice when working with the image of the hermit crab, clicking Reset clears all edits. A preset layer and then a brushing layer set to darken are created. When the edits are applied, the image goes back to Photoshop as a new layer.
When the seascape image is sent to Exposure X, the last adjustments are automatically applied. The brushed area is obviously out of place. To remove it, go to the Brush icon, open the Brushing menu, and find the pin that matches the brushing layer. Right-click and delete the pin and the brushing layer disappears. The original preset from the first image still shows, but the artifact is gone.
Learn more about brushing and layers in this tutorial video.
If these steps do not fix the problem, please contact support.