Hi Brandon & thanks for your reply.
Ironically my wife & I just returned from a two week drive vacation in your country on the South Island beginning and ending in Christchurch.
While there we took more than 2000 JPG pictures on a combination of Panasonic Lumix and Samsung S7 phone/camera. We downloaded and combined all pictures from both devices onto a single Windows 10 PC into a standard folder without making any changes. Beautiful as NZ is, we knew that nobody would sit through a 2000 picture slideshow! So, we managed to select the 350 best pictures and copied them to a separate folder. In that separate folder I renamed each picture (file) so that they would follow standard alpha/numeric rules and present in the order of our visit. When I imported that folder (350 best pictures) into Photoshow Express, the pictures were in what seemed like random order. In addition some pictures were upside down and some were sideways.
I'm afraid I am a novice and I don't know how to post on the drives you suggest.
As for other programs in Create NXT5, yes I do have some problems but they are different. Using Create Slideshow, the pictures import in the correct order and all are correctly upright. However, some JPG's from my windows files won't load into Create Slideshow. On the select screen they show up as a red circle with a diagonal line and on the create screen they show up as a "?". When viewing these pictures in Windows 10 they are OK and contain all meta data. These are not the same pictures that are troubling in Photoshow Express.