Okay, I'm going to try to explain this in more detail.
I have scanned a bunch of negatives and slides as TIF images. After importing them into Lightroom, the first thing that I want to do is remove dust spots. I much prefer doing that in Photoshop, so I send the original TIF over to Photoshop where I removed the dust spots, crop the image and make a few minor adjustments. I then want to return this to Lightroom, saved as the original.
Once back in Lightroom, I go to "details" to reduce the noise. I zoom to 100%, move a slider, and the image disappears. Approximately 1 to 1.5 seconds later, after seeing "reloading" the image reappears. Another slight move, and the image disappears, "reloading". Any movement of any slider causes us to happen.
Let me state again, this only happens with sending the originals, not when sending a copy with Lightroom adjustments.
I guess I should've got one problem solved before I mentioned another but the other thing I was talking about is that in Lightroom 5.7, when I opened the catalog, it would say "not found" and have a button that said "retry". I could click that button once or twice and it would open the catalog.
Now, with Lightroom CC there is no "retry" button. The program just simply stops, has to be closed, and reopened.
Sorry for the confusion and all help is greatly appreciated.
Cliff