PhotometricMosaic 4.0 is now available. It is not included within the PixInsight core distribution; you need to download it from my website:
This release includes some important bug fixes, more accurate graphs and many controls now have their own reset button.
It also contains a new section: Join Orientation
Previously, if you have a very large overlap, PMM would fail. This was because the calculated join orientation assumed that the join line is longer than the overlap thickness.
You can usually leave Join Orientation on its default setting (Auto). However, if you have a very large overlap, you are now able to specify the join orientation.
TrimMosaicTile now defaults the trim size to 5 pixels.
Regards, John Murphy