Lightroom has an HDR feature that creates HDR images from any photo. When you open this adjusted photo in to Photoshop - using the Edit in Adobe Photoshop menu, it is opened in Photoshop in 32-bit mode, which is incompatible with some actions and effects. You eventually need to convert images down to 8-bit anyway to be able to print or save .JPG files: Share the image from Lightroom to Photoshop Convert the image to 8-bits in Photoshop Apply your action or effect This video will explain how to convert the resulting 32-bit HDR image in Photoshop to 8-bits so that you can apply any of our actions and effects to it: