Soft synth switching pitch on re-opening

[Marc St-Jacques]

Never had this before operating under the new Sonar: I record one or more instances of soft synths (mostly Analog Lab V5 and synclavier), no problem. When I open Sonar the next day, all soft synths have raised pitch one semitone. An E will still be an E on the piano roll, but the note coming out is an F and so on. Anyone has encountered this problem? Please help! 

[David Baay]

Sample rate mismatch. 48/44.1 is inbetween a half and a whole tone. Make sure your interface's sample rate is matching Sonar. This won't usually happen if the interface is dedicated to Sonar using ASIO. If it's onboard audio and/or it's the default device for Windows audio, this is more likely to happen.