When editing an image in Slide View, you may encounter an Unhandled Exception error stating that a "Parameter is not valid". This can occur when you perform both of the following actions on the same image in this specific order:
- Go to the Format tab, and select Flip or Rotate.
- Go to the Format tab, and select Set Transparent Color from the Recolor drop-down list.
This is a known issue. You can avoid this issue by reversing the order of the above events. Set the transparent color, and then flip or rotate the image.