I'm on the latest Lightroom CC and OS Sierra and I have found that Lightroom is not automatically detecting my CF card when inserted. I have the auto detect box ticked etc and my card reader is a Lexar USB 3, any ideas?
I've has issues with the Lexar Professional 32GB UHS-I SDHC card. I get corruption on some photos occasionally. I had assumed it was incompatibility with my Olympus E-M1 but perhaps it was Lightroom all along. In any case I've now switched to SanDisk Ultra SDXC UHS-I with no problems at all.