Hi all,
We have just released a critical update to the ImageRegistration module that all users of PixInsight 1.8.3 should install on all platforms.
The StarAlignment process released with the initial version of PixInsight 1.8.3 has a bug that may cause data losses for projects created with PixInsight 1.8.2 and previous versions. The update we have released today fixes this problem.
I hope nobody has had any problems with this bug. Sorry for the inconvenience.