media playlist - file name appended incrementally each time run

I am using blueprint and the ‘add file’ node. This is to add a string of the named video to a playlist, the video plays if I add it manually to the playlist.
The issue appears to be that the string via blueprint has a number appended incrementally each time that it is received by the playlist.

I’m attaching images that shows the number increasing this does not seem to clear even when restarting the preview, I feel I may be doing something obvious!
Thanks

I think you want to post this in the UE4 Blueprint forum: Blueprint Visual Scripting - Unreal Engine Forums

This is the UDK forum. We don’t do Blueprints around here.