Minor niggle with File Explorer's Navigation Pane initially slow to display my networked devices (computers). However clicking the Network Icon immediately populates the area to the right of the Navigation Pane with my Computers, Media Devices and Storage.
Network sharing works well with all my computers.
Network is Private.
My computers all have defined IP addresses.
I don't remember this being an issue prior to version 1903.
Windows 10 Pro
Version 1903
Build 18362.418

Any idea how to fix this?