Oh go on then, I look into it further…..
If you sort the files in the folder by date modified, you’ll find the most recent is: Skimmer_Metal_v200314 K5.4.nki
This is the final release version, that is showing in the video.
Load that and you will be asked to locate the missing files. Once you have done that it will load. If you are happy with it go to Load/Save (the icon to the left of settings cog) > Save as and select Instrument #1 – Skimmer_Metal_v200314 K5.4.nki and then click on Save at the bottom right of the dialogue box.
It is now saved with all the correct info and will open correctly on your computer next time.