I had the Film share on Public and I then changed to Secure after this happened. I have not added any User profiles as I will just manually switch from Secure to Public when I want to write to the server.
I am using a Windows 11 to write to the share.
The server is at home and I trust everyone. Today, I have changed passwords, disable upnp, disable remote access for router.
I have a Zidoo player but I have never had this problem in 10 plus years I have had Unraid.
I assume there are no clues in the diagnostic file regarding this?
An odd thing was that one film had been copied from the server to the desktop yesterday evening. I did not do this.