I have been working with X3 all day, and suddenly midi stops working from my keyboards, but tracks with midi already on them still work. I'm using Roland Duocapture as my interface, and when I switch to ASIO4ALL the midi starts working again, but everything only plays through one ear. 
Any one have this issue and know what to do with it?
 

Why are you using Asio4all? The Duo capture has ASIO drivers of its own.

mudgel
Why are you using Asio4all? The Duo capture has ASIO drivers of its own.

I was using it to troubleshoot what the source of the issue was.
 
I just reset everything and took all the cables out and the problem went away -_-

Thanks again for your help!