5dmkii intermittently stops writing to CF card while shooting tethered to Lightroom

[blayson]

I have been using both my Eros cameras tethered to Lightroom using the same laptop setup and tether tools cable.

recently during several sessions I found that after the first few exposures the preview that pops up on camera screen was not there and later that the photos were not written to the cf card. Luckily the images were on the tethered laptop in the proper folder.

Has happened with two different cards

I format cards with camera after downloading images to workstation 

have not changed anything in my work flow

so far seems to be writing to card normally when not tethered. 

Does anyone have ideas?

[Waddizzle]

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@blayson wrote:

I have several, Main two I use are

Lexar Professional 1000x 16Gb

and Sandisk Extreme Pro 16Gb

I have the camera format whenever I have downloaded, before next session

Both are a couple of years old.

I never shoot them completely Full, I usually download after each photoshoot

I'm not sure what a Low Level Format is??

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Those cards sound like they're fine.  It is unlikely that every card would fail at once, not unless the camera was compromising them, which again is unlikely.

Resetting the camera clears settings like Long Exposure Noise Reduciton, High ISO Noise Reduction, etc.  Some settings can cause a camera to sit there "BUSY" while it processes image.  Try taking some pictures in Green Square [A} mode.