I have the latest version of LR. Just recently installed. I uploaded from my card reader some recent pictures. They get to Library no problem. Go to the collection I want, no problem. The collection count indicates the number of pictures imported. When I click on Develop all the pictures go black..nada...nothing. No Histogram...nothing. Cannot bring to Photoshop under the edit, no picture shows up.
Should I uninstall and reinstall? If so how do I do that? I do subcribe to Adobe Cloud......Thank You in advance for any help.

Thats New Zealand for those that don't know!
In the Nov, Dec time frame I am planning a two week trip to New Zealand. I’ve been here many times because my wife is a Kiwi although transplanted to the U.S many years ago. Every time I’ve been in the past it was to visit family and Golf vacations. This time the clubs stay behind and the cameras are coming. I’m looking to photograph long exposures, water lighthouses and maybe some star trails.

I’ll spend one week in the north based in Auckland, so looking for some waterfalls I can catch in the morning golden hours. Then I’ll be in the South traveling to CHC to Lake Tekapo. Then on to the famous Moeraki Boulders for a day or two. Then, the Catlins. I’ve done a ton of research and have some great shooting ideas, but it’s always good to get some local knowledge. If anyone has any specific recommendations for water falls, lighthouses or dark sky reserves in these areas feel free to let me know. Or If you just want to go shoot, or toss back a cold one - ping me.

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I would verify you can open the JPG in another application and that it is not corrupted somehow. If you can, try re-syncing that directory. If it is all JPG files then we need to try something else.

You have the option on import to change your files to DNG or not, its up to you during the import process.

As far as adjusting the sliders, two things come to mind. First if you use a process version other than 2012, the sliders are not set to zero by default. But LR is not adjusting your photo for you. If you go to settings and change to a process version other than 2012, you will see your sliders move. Or you may have a import adjustment that is changing them. For instance, on my D800 I have an import preference that adjusts the shots exactly as the camera would do it to display the JPG in camera. This way my RAW file is adjusted on import to look like the camera JPG and I start with a slightly adjusted file to edit. So look for an import preference.

I downloaded the trial this afternoon after I saw your earlier post. Kinda difficult to figure out so i downloaded a users manual in english and spent a couple of hours with it. It is much more complicated than what I now use and I was unable to produce the type of photo effect I like in HDR, which is one that kind of looks like it might have been a painting rather than a photo. Most of the more popular apps have names such as "painterly" or "grunge" for the various effects and provide a selection of thumbnails to make your choice from. I flunked art class in school so I prefer to have a large choice of preset effects and just click on what I like. So far my favorites are HDRist (easy to use) and Topaz Adjust plug in for my PS Elements 11 which offers more adjustment tools for those who like em. :-) :-)