Video Skipping back to start when inserting overlay

[RobD]

Hi All,

I am currently creating a user manual in powerpoint & using powerpoints on screen recording tool have inserted a video into the presentation.
I want to install some overlays to this which I have started doing, but when I try to insert overlays to certain point of the video. Say a text box at 15 seconds in, the video will just skip right to the first frame.
This is very frustrating when trying to insert the overlay next to a specific part of the video

Can anyone help I have looked around on the web but no results

Please help!!

Thanks