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Preview not available or images not recognized on import

Matt Gruebmeyer

New Member
Sep 25, 2018
Lightroom Experience
Lightroom Version
Lightroom Version
Lightroom Classic 7.2
Operating System
Windows 10
Hi, all.

When importing larger files (K1) on especially a larger card (32gb), my Lenovo desktop does not always see the files, often does not display previews, sometimes shows "preview not available" and sometimes works quickly. I've tried restarting, closing other programs and otherwise increasing available memory, but what seems always to work is dragging and dropping the files from the card onto the desktop. This helps even when still importing from the card.

It's never happened with smaller files (K-5ii) from smaller cards and doesn't always happen even with the larger cards. Is it memory related?

What's going on?