Blanks in Lightroom

[Fred]

I returned from Oshkosh some weeks ago. On one of the days I made no fewer than 1197 pictures. That night in the hotel I downloaded them on my laptop. However, now that I am processing all those pictures I have found that about half of the pictures do not load into Lightroom. The metadata (date, time, shutter speed etc) are all there, but the picture is not. The pics I made on the other days are all OK.
I used the same memory card a day later so I cannot recover the data from there.
My questions:
1. what could have happened?
2. can I still recover the pics (a long shot, I know)?
3. how to prevent this?

[Whitecat]

Did you checked if the raw files are on your hard disk?

[SquAdmin]

That was my first question as well. They should be on disk if LR can show the EXIF of the pictures, it just has difficulties rendering the images.
Could be that they're partially corrupted then and LR is pretty sensitive about that. E.g. in my LR installation an image downloaded from Whatsapp cannot be rendered while IrfanView has no problem with it.

[Fred]

I asked around, but nobody seems to know. It may not have been a Lightroom problem after all, but a buffering hiccup when shooting many images in a short time (which I did). I also loaded the blank pics and others into a Sony as well as an Olympus photo processing program, but the same blanks show up accompanied by the metadata.

[joseluiscel]

just my idea, a long burst taken and camera shut off before all buffer has been downloaded to the memory card? I had a similar problem some time ago.
Hope you find a solution, regards

[Alpha Kilo One]

On the other day you used the same card. I would suggest you try to use photo recovery software still. Available space on your card is not numbered 1 to 100.

When card was not fully used both days, you might have a chance to recover pictures

[Richard from Rotterdam]

Sounds like you ejected the memory card from your laptop before it was finished downloading all the files. Normally lightroom reads the images' metadata and makes low res previews before you start downloading the complete files. Might be that you thought the laptop was finished downloading before it did.

[FISHER01]

Are the blank pictures about the same filesize? or only a few bytes? most raws should be around 28MB.

[Derice]

What if you convert them using Adobe DNG convertor? Do they load than?

https://helpx.adobe.com/nl/photoshop/us ... erter.html

Also what if you copy a RAW file back to another memory card and insert it into your camera, does it display the image on the camera?

I usually copy the RAW files first from the card to a folder on my system, and than load that folder into Lightroom.