Hello and welcome! I would like to ask anyone using astrophotography software to process their images for some advice. Recently, I captured 400 frames of the Skull Nebula with my Seestar. However, I have encountered an issue with Siril: the star registration fails every time I try to pre-process the images. Previously, I used OSC pre-processing without DBF; however, I only managed to stack the frames with the Seestar pre-processing script. The pre-processing has struggled to stack all of the frames, which means that although I have 400 frames, I am unable to register them all. What should I do in this situation? Also, does the stacked file still resemble what a registered and stacked image would look like, or could it differ significantly? Thank you!