Recently installed Photo Gallery (PG) on my Windows 10 laptop and was using it to view my photos which were migrated from a previous device. PG was now my default viewer. Was opening and viewing photos no problem until suddenly, moving on to a new batch to look at and maybe edit, PG would display a photo full screen but when I clicked 'edit, organise or share', it and other pictures from that batch would not display in PG, for me to edit or otherwise.

Why did it stop working, as it had been doing for the hundreds of images I'd already 'moved' to PG without a hitch. The photos that won't display as required are no different to the images sorted previously.

I know someone out there knows but if you can keep it simple for me, that would be great. I'm new to this thing altogether. Thanks all?