Change the option in Preferences (under the General Tab) so that "Treat JPG Files next to raw files as separate files" is CHECKED.
Lightroom CC (2015.7) and Lightroom 6.7 are now available and it includes support for Canon EOS 5D Mark IV.
Please update Lightroom to latest version from Help>>Updates menu.
Release notes:-Lightroom CC 2015.7 now available
I am using LR 4.4 64 bit.
also cant preview raw files shot on canon EOS 5D Mk IV.
Can you please advise ?
You can purchase Lightroom 6.7/Lightroom CC 2015.7 or later
Or, you can use the FREE Adobe DNG Converter to convert your RAWs to DNG and then import the DNG into Lightroom 4.4.