Movie files not appearing

Hi Guys hoping you can help. I have used serviio for over a year without any issues. I have 2 servers set up , 1 that is used as a network share that is 6TB, server name "Mandura" and the other where I have serviio installed , server name Serviio", 4TB. I have set up a network share that is used to streams files, which works without any issues, as I have used the same user name and password on both servers. Everything worked but all of a sudden for some reason now no movies are viewed in my movies. When I use " Force refresh " I can see that it is going through all the files. I am using the latest version of serviio 1.5 on windows server 2012.

Any help support will be much appreciated