This is a thread to discuss the Wrinkle Removal tutorial. Please keep all posts on-topic, don't spam, and read the entire thread BEFORE you post - any issues you have could be answered deeper within the thread.
One suggestion though: Instead of duplicating the layer (makes big files bigger and might slow down computer if user doesn't have enough RAM memory) try creating a new layer and checking the "All Layers" checkbox that appears at the top when using the healing tool.