My problem is that 1903 removes start10 and has to be re-installed after the 1903 upgrade - I'm sure that Stardock should be working with Microsoft to address. There are lots of issues with 1903, removing programs, changing sharing settings etc.
My specific issue is that I have probably 20-30 start10 licenses and have no idea which goes with which PC. so far I have had 5 of these issues, and my only way to resolve is guess which does with which PC!