If your output appears unnatural or shows visible artifacts, the issue is often related to the input image quality. Heavily compressed, low-resolution, or heavily filtered source photos can confuse the AI's enhancement algorithms, leading to over-sharpening or texture irregularities. To troubleshoot, try uploading a cleaner, higher-resolution version of the same portrait, or ensure the face is well-lit and clearly visible. If the problem persists, consider testing alternative upscalers like
Crystal Upscaler or
Flux Vision Upscaler, which use different enhancement techniques and may handle your specific image better. For persistent issues, reach out to JAI Portal support with a sample image, and they can help diagnose the cause.