New to using SOTI, we're currently setting up to use it for some educational devices (Samsung Tab A) with lockdown to restrict access to certain websites as well as playing a limited number of videos.

I'm having difficulties adding a link to a locally stored video file on the lockdown screen. I've tried adding it as a file:// and movie:// link, but when you tap on the icon it highlights then does nothing. Once it came up with the option to select a video player, but still didn't start playing the video.

I know the link itself is correct, as if I switch on "launch automatically on start-up" the video plays once I restart the tablet. 

Can anyone offer some advice on this?