Pro Tip: E3DDY works best on linear data (unstretched images). If you apply it to a non-linear image, you will get harsh artifacts.
Cause: You have downloaded a version compiled for a different version of PixInsight (e.g., a 1.8.6 module on 1.8.9).
Fix: Remove the old module files manually from your bin directory and re-download the version specifically compiled for your exact PixInsight 1.8 sub-version (e.g., 1.8.9-2). PixInsight 1.8 - E3DDY download
This is the preferred method for PixInsight 1.8 (versions 1.8.8 and newer). Apply with a Star Mask: Create a star
Upon restart, you should find E3DDY under the Process menu, likely in a sub-menu named Eder or directly as E3DDY. Pro Tip: E3DDY works best on linear data
Cause: Memory limitations. Deconvolution is RAM-intensive.
Fix: Use the ImageContainer tool to process smaller tiles, or reduce the image size slightly. Ensure you have at least 16GB of free RAM before running E3DDY on a full-frame 50-megapixel image.