Lightroom stops saving to SD card mid shoot - Canon R5 and 5D m IV

[Sara Essex Bradley]

In the middle of a tethered session to Lightroom Classic, the images will no longer save to the SD card for a random period of time. They are saved in the proper session folder on the laptop with the previous shots. Then it will radomly start saving again on the card, usually after I have turned the camera on and off.

I have had this problem ongoing for a couple of years, on both the Canon 5D with a CF card, and the Canon R5 with an SD card. I am not changing anything mid shoot. Also, for the images that don't save to the card, the file numbers start over at 0001, but when it starts saving to the SD card again, it picks up with the last number that was saved on the card. This is maddening.

Lightroom is up to date. I have uninstalled and reinstalled the software and it still happens.

If anyone has any insight I would much apprectiate it.

[dj_paige]

Hardware problems could cause this. Bad camera card, camera card overheating, malfunction of the write head in the camera, and probably a few other things.

Depending on how fast you are shooting, you can also be exceeding the buffer in the camera.

[Sara Essex Bradley]

That seems plausible, but it's a new camera, new SD card (both under 6 months old). I'm shooting on tripod not particularly fast bc my strobe reset was lagging. But thank you for your thoughts! I'm wondering if anyone else has had this particular problem? I can't seem to find anyone..

[dj_paige]

New hardware can malfunction.

[Weston5E23]

Yes, it's happened to me multiple times.  Up to date Lightroom with Canon 5D mark 2 and Canon R5.  Different CF and SD cards and different laptops.  Highly doubt this is an issue with hardware like a new card etc.  I think mine happened yesterday after a battery change mid shoot.