1903 is best done via clean install. Upgrade path has multiple flaws. Including Remote Desktop issues, joystick issues and most likely the issue you just mentioned. While I cant be 100% sure that clean install will resolve your issues, I would recommend considering it, maybe backup your old install and take the plunge, worst case you can restore the backup if this does not fix your issue.
Out of three systems I own everyone one of them needed clean install for 1903 to work correctly.
Hope you find this of help.