When viewing the default Plex Media Server.log file in Log Viewer and you click on 'download selected logfile', the file name of said log file is saved as 'Plex' with no file extension.
The same applies for any file name containing a space, only the first word is used for the file name.
WT is installed on Synology NAS. I will test the PC install later on when I have time and report back.