When I create stars with the "Starfield" module with a very low speed some stars suddenly disappear, see the orange one here https://youtu.be/fj-aZ1ZAzIs?t=78
This happens only in the final render, not in the preview, and it's visually not very pleasing.
It would be nice (not only for this issue) to have the possibility to define a time for the Starfield-module after which a star (slowly-) fades away.