The environment is this : Windows Remote Desktop Server running Server 2016 User desktops are redirected offline files are disabled
The symptoms are :
a) this affects all users
b) if a user manually creates or copies a file to the desktop - all is fine
c) if any applications (e.g. pdf printer, save a page from firefox) create a file on the desktop the file is written to the redirected desktop folder but does not show until a manual refresh (f5)
No apparent errors in the event log and this does not happen if the user logs on to windows server 2012 rds servers.