SD UHS-II USB-C Reader won't transfer video unless it's viewed first

I have just bought a SanDisk SD UHS-II USB-C Reader so that I can view my NextBase DashCam files on my iMac.

I have found that I can’t transfer any video files to my iMac, or to my Macbook Air, unless I first view them on the SD card via the SanDisk reader.

Once viewed they transfer perfectly well. Is this normal behaviour?

David

Hi @breweruk

Check this article.

Have you opened a Support Case?
If not, contact SanDisk Technical Support for assistance.
https://shop.sandisk.com/support/contact-us

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Thank you so much. That link was perfect. It has solved my problem. Thanks for sharing. :slight_smile:

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