Hi Mark
I double checked all of the settings before and after the update and nothing had changed, I loaded up some songs I had recorded pre update that were working with sound and all settings were the same all routing , buses aux tracks etc are as they should be everything is routed to the zoom r24 but no sound laptop has r24 as default line out for audio.
There appears to be a problem with cakewalk sending sound through the r24, I recorded my keyboard as an audio track not midi and it showed as recorded but when playing bac, no sound, you can see the audio wave and all signs of music playing on cakewalk ui but r24 shows nothing and no sound, will install waveform by traction to see if it works before buying a new interface