I just picked up a DDJ 400 last week. I am having all sorts of problems with the jog wheels.
They seem incredibly inconsistent, they are functioning like vinyl mode is turned off or just completely not functioning.
Not sure what happen. I didn't notice the issue the first couple days, i noticed issues after updating to the most recent version of rekordbox. I had the free version installed prior to purchasing the hardware/license. I updated the software after a couple days of activating my license.
I have a support ticket in, but no reply.
I've tried other usb cables, i unplugged the RCAs to see if it is a static interference issue. Nothing seems to resolve the problem.
I took the controller to a friend's who has a Mac Book and the jog wheels functioned normally. I have a HP Spectre with Windows 10 with i7 processor.
Any ideas on how to resolve this would be greatly appreciated. This is a very bizarre an frustrating issue to troubleshoot.