I have my RME UCX (Interface) midi Out port 1 connected to a sampler (SP1200) midi in. When sampler is in midi mode, Cubase play/record triggers it perfectly when I’m in 32-bit Version. No issues. However when I am in 64-bit version the sampler isn’t triggered by the Cubase midi/play signal. I suspect the issue is in Device Set-up > Midi Port Set-up but I can’t find any discrepancies between the two settings. Since one sw version works and another does not, I think I can safely rule out Interface settings.
Any help would be greatly appreciated.