Daemn42 Yes, it is (I assume) supposed to be rejecting hot pixels during live stacking but it is not. And yes, the hot pixels appear during live view (see pictures above). Individual frames from different objects all show a single (maybe more) pixel fixed on the exact same place on each one.
By the way, the ASIAIR live stack also has the same problem which has been already reported elsewhere. On the ASIAIR is not an issue for me because I do not use its live stacked pictures for sharing. However, in the S50 it is an issue when its main selling point is producing instant, decent pictures ready for sharing. That worked fine for me until those fixed, hot pixels started appearing.