I struggled for hours today trying to get both Adobe DNG Converter ande Helicon Focus to open my raw Panasonic RW2 files, trying everything suggested on Google, but then stumbled on my particular solution.  Almost all of the web links emphasize to update your LR or PS to the latest version, but in my case the problem was that ADOBE DNG CONVERTER WAS AN OLDER VERSION and therefore didn't recognize my particular camera model.  So the fix was to simply download the latest version of DNG Converter and once installed, voila, problem solved!  Just always make sure that ALL of the APPS you are using are updated to the current version and many of these kind of problems will disappear.  Good luck. ... View more

I had the identical problem FOR MONTHS, but I finally got it fixed.  For me, the solution was to run Adobe Creative Cloud Cleaner Tool, and afterwards, Voila!  PS now loads and runs super fast, including editing from LR.  Here's the link, but make sure you run a backup of your PC since this app cleans corrupted files and Registry entries and is intended for advanced Windows users.     https://helpx.adobe.com/lt/creative-cloud/kb/cc-cleaner-tool-installation-problems.html   Hope that helps you like it did me.  Good luck. ... View more

IT IS SO FLIPPIN BONEHEAD CHANGE! ... View more