Unknow bug report. Widgets failing to display correctly

About 2 weeks ago I starting making my own game when I see that some widget don’t come lot in game like they should. I watched a short video to make a actionbar (hotbar) The link for it is below. Here’s the headsupdisplay that I made in the tutorial.

The above screen shot should be where the widget should display the action bar. See now look at this.

This is how I see it in game. I asked the arthur’s of the tutorial and they can’t find anything thing wrong. This video tutorial should work for everyone.

Here’s the link for the video tutorial. https://www.youtube.com/watch?time_continue=7&v=Vr_SdDDLO5s&feature=emb_logo