When Zoomed it should not be necessary to Click and Drag but rather to simply press the tip and drag. It works as expected for me on Win 7 64 LR CC2015.1 and the Intuos 4. If you don't click, will it drag with just a pen gesture?
When I say "click and drag" I mean the tablet equivalent, so I am pressing the tip and dragging with no luck.
Works just fine when using a mouse.
I have the same issue. The picture twitches once but does not move when dragged with hand tool. Wacom Intuos 3, Lightroom CC 2015, Windows 7. I'm puzzled! Worked like a charm with Lightroom 3.6.
Hey, found a solution! Just disable the GPU acceleration and it works again.
That's not a solution!
I have also observed this behaviour on two PCs with different Wacom tablets. It appears limited to Develop.
Well, if you happen to be part of the minority who get performance boost from using the GPU acceleration then sure, this is not a solution! But for the rest of us (me included) having functioning hand tool is just one of the benefits of NOT having the GPU acceleration enabled. My LR went from slow, laggy and almost unusable to fast and snappy simply by deactivating the GPU acceleration. Working hand tool while zoomed in was just one of the extra benefits which I discovered only recently.