My last camera was a nikon d610 which never exhibited this issue. I have recently purchased a refurbished canon 6d from a wedding
photographer. Everything has been fine except he said it had 8k clicks and its really 8974 clicks, and It seems to be very easy to get hot
pixels in images with long exposure. I tried a trick involving manual sensor clean function which was supposed to remap the pixels. This
helped a bit. Now instead of there being 25+ hot pixels there is only a dozen. If this is normal for canon cameras Ill just learn to live with it,
but I am just wondering if this camera was not actually repaired and this photographer did not notice because he did not do low light
photography. I had a bad experience with Canon repair once before, where they said they fixed the back focus issue and sent the camera
back to me 4 times before it finally actually got fixed. Meanwhile 8 weeks without the camera. I wouldnt be too concerned ordinarily but I
had to pay almost the refurb price if I bought the refurb from canon.