Transferring wrong pic image to computer

[AC Question]

I am having a weird problem. I use my phone for work to take pictures of homes and when I get back to my computer and transfer the pic images to my computer it will randomly switch one of the images to an older picture that I took weeks ago and change the file name to the new one. If I check my phone the correct one is there however it is an incorrect image on my computer. This is becoming a real problem because I may accidently not catch the error and right now I am having to email myself the correct one from my phone. Has anyone else ever had this happen as I am puzzled.
Thanks