Hey everyone, I just bought this controller and I can confirm it is working with full functionality on my HP Windows 10 laptop. I took my laptop to the store to test it and I was having some issues but I took it on faith that I could figure it out with some tinkering so I went ahead with buying the DDJ-400. I took it home and installed Rekordbox DJ which I think probably updated the drivers (tried to do that manually first but the Pioneer website says it’s automatic and there is no download). Once I did that and went back to Djay Pro it worked great.
Thank you algoriddim for listening to the community. Now to just get it working on my CDJ900s (of course those are 10 years old so I totally understand that being low on the priority list).