Default [Q] Viewing pictures on PC, wrong names, missing photos etc.

H all,

I just plugged my Note 3 into my PC to transfer some WhatsApp pictures. I go to The WA images folder and notice that some (the majority) of photos from recently are missing. Instead there are photos taken weeks ago but they 'newer' dates.

An example.. I have an image called "IMG-20140819-WA0017" but this has the thumbnail of the image I received months ago which is called "IMG-20140628-WA0075". The one dated yesterday will not open either "Windows photo viewer will not open.."

Each time I refresh the folder on Windows I can have different results, images will hide/show, older images will show up again.. its a massive mess.

I just got sent a picture of a car. The folder thumbnail on my PC is the car. I go into "resources" under properties on the image and it says "Thumbnail" and the image isn't a car. I open the picture, it loads and shows the wrong image ??

I hope this makes some sense.. has anyone experienced something similar before?