Hmmm - halftone and more sounds like a sample rate issue: if Cantabile thinks it is running at 44.1 kHz and your audio interface is actually doing 48 kHz, then a 440 Hz A would suddenly play at 478 Hz - which is about 1.5 semitones sharp.
But the floating detune is confusing - can you check your MIDI monitor and see if your Roland controller is sending pitch bend data? Maybe something broken with the pitch wheel?
I’m not @brad, but I still checked your log file. I see that your audio interface was initialized at 48 kHz and I see that you have an OP-X in your setup. Some older versions of the OP-X Pro (before V1.2.1) used to be unable to deal with 48 kHz - newer version have apparently fixed this.
Could it be that only your OP-X was detuned and all your other instruments were in tune - this could have given the impression of “floating detune”. The newest version of OP-X should be OK with 48 kHz
Or maybe there’s another plugin in your setup that can’t deal with 48 kHz. Are you running your setup in 44.1 kHz now? Maybe that’s a reason for everything playing nice now…
Could you tell us a bit more about your audio interface and its configuration?
I stream cantabile to X32 using a KT DN9630 (usb to aes50). X32 is running at 48 but I noticed that Cantabile was setted at 44. I am using this setup from about 2 years without issues but I will try to run Cantabile at 48, is that suggested ??
64 bit version is 1.2.6 but 32 bit version is 1.1
I think I have to use 32 bit version with Cantabile32, haven’t I ?
If your audio bitrate is running at 48 kHz, then Cantabile should definitely be running at the same bitrate; anything else can create all kinds of strange effects.
I looked up the OP-X PRO II version history - it looks like the sample rate issue was specific to the 64 bit version, so the 32 bit version should be ok if your system is consistently running 48 kHz. Can’t verify this, though - I have migrated to 64 bits years ago. Out of interest: what is keeping you at 32 bits? jBridge is a great helper for few remaining 32 bit plugs…
Gaaah - that’s definitely not a sample rate issue - too close for that! Really sounds like either a dodgy pitch wheel (that’s something that can be fixed with a MIDI filter; who needs pitch wheel with a piano) or some funny stuff with the audio interface. I’d suggest going old-school and getting a solid and proven audio interface (Zoom or RME) and connecting analog to the mixer. This at least eliminates one source of complexity…