The VLC source is configured to look in a directory as the source rather than just look at the file. This would show up as a source no problem. Then in the media tab I had it set to switch scene with 600ms left to go, it would work for a while and then stop, not sure if the directory part confused it. Sadly I deleted the config so cant upload the export, sorry.What exactly are you configuring in your VLC source and the plugin?
(For the latter you could just export the settings on the general tab)
If I know that I can try to reproduce the issue.