Ian,
Pic 1 Gives Norton an issue causing me to not be able to do anything but close the error.
Pic 2 shows me the pic on imgbb.
Pic 3 shows me the jpg from the TM Image site.

I have went to Norton and recorded tm_img.com as a safe site and been able to log on which means I can upload photos etc. I logged on and tried the images and got the same results again. So 1 will not let me view it after tm_img being stored as a safe site and even after being logged on on another tab it still gives me the same issue as tm_img gave me before I made it a safe site.

Not sure if that is useful info or not.