It is working normally- as in previous versions for me. I can move any Graduated Filter regardless of how many are in the image.
You may need to reset your preferences by closing Lightroom, holding [Shift][Alt/Opt] and relaunching Lightroom. Overwrite preferences when prompted.
If that doesn't work, I would look at your Mouse and Tablet drivers.
Resetting preferences didn't change the behaviour.
Please test the following:
Create two gradients.
Now one dot should be black (selected) and the other light grey (not selected).
Now click and hold the grey dot and try to move it.
In LR 5.7 I could move the gradient, in LR CC the mask turns on and the gradient is unmovable. Only on release en click, this time the gradient moves.
This is on Windows 75 64.
I see - you want to click hold and drag without first selecting the pin. Yes. That is a change.
You must click, release and click again. This is because Overlay visibility of the Graduated Filter was introduced in LR 6.
Click to select then click and hold to drag,
I believe this behaviour should be disabled. Because as a professional, editing hundreds of images, this slows the workflow. If I need to see the mask, I'll hover. And for the gradient tool I believe the two outer lines are indication enough. Completely useless addition.
Completely useless addition.
Until you paint additionally or erase from the Graduated Filter... Then it is essential.
There you have a point...
I just wish it wasn't the default action. Most used functionality should take precedence.