I have experienced two strange phenomena recently on which I would like some input to help me determine what is happening with my equipment/software. These problems are spread over 3 photoshoots.
In the first instance when I exported this image after processing I got three images, two normal images separated by an image which looks like a multi-colour smudge, as shown below.
Image 5929-2
Here is the preceding image: Img 5929
Here is the image which followed: Img 5929-3
These images are all from the same exposure img 5929: When you save second or third copy of an exposure Lightroom asks if it should overwrite or use a unique number. I don't recall doing this but I must have elected " Unique Number".
This anomaly happened several times when I processed the shots from this photoshoot. I think 12 times. If it is important I can look back and find this.
I assumed something was wrong with the SD card so I formatted it in my camera. It is a 16 GB ScanDisk Ultra 30MB/s.
Later I went on another photo shoot. Everything was OK in this shoot.
A few days later I went on another shoot and everything seemed OK. I was able to look at every exposure and adjust as needed. However when I returned from the shoot, and looked at the exposures on my computer, I could find only one exposure ( the very first) from that shoot on the SD card. When I put the SD card back in the camera all from this last shoot, except the one mentioned above, were missing. Also the one surviving shot from this last shoot was not in sequence that I took it. It appeared in the third 'slot' of the previous shoot. I think I may have deleted a shot from the aforementioned shoot.
So I don't know if I have a problem with the SD card, the camera or the processing software, or if these problems are independent of each other or what? Can a problem in any one of these cause damage to another?
Appreciate your input to resolve this.
My camera is a Canon t2i
PP software is Lightroom 6
SD card is Scandisk 16GB 30MB/s