David Baay, yes much in the way of what I have checked to date. I know Cakewalk well have been a user of it since Pro Audio 9 (20+ years ago) so yeah you right those are the obvious suggestions - checked all those and have done a thorough walk through of all the settings and comparisons per track. Fact is it is happening to Midi tracks only - Now in saying that perhaps my controller is sending signal that I'm not seeing - but I would expect to pick that up in Midi Events - but not seeing anything there either. Track for track comparisons show no such the same - setting the MIDI volume at the start of the project track makes no difference. As it is as if the setting is changing the Velocity... It is as I see - either a signal from a Virtual Instrument back out across the Virtual Omni or as you say me knocking something - but this is what gets me when I compare the tracks I can see zero differences in the tracks and settings of the VSTi's - no Midi change requests on Velocity or other / no system messages or anything like that... but after a few plays and change even the new track has had same happen eventually. So I think it is something I'm doing or something traversing the Virtual Omni - but I missing as it doesn't appear as a Midi Events. So it affects the plugin (VSTi) And once changed you cannot revert back. Midi Level and Velocity still at default no matter what as viewed from Cakewalk. Strange... again automation lanes etc etc nothing there. Not a peep.
David Deneau, that is a interesting observation - so you telling me that you think Omni signal is getting something via virtual controller if not physical and to stop that from happening you remove the channel from processing anything on Channel 1 or omni? (Picking Channel 6 is as far off field as any :)) I'll have a go - I have a Project at the moment with 2 Midi Instrument track exhibiting this issue - I'll have a look and try your suggestion. And see what I can observe. And get back to you in the next 24 hrs
Thanks guys for the help; not a back thing to go over the same information. I wonder would Cakewalk undo history note something? Not likely if a not noticeable from within the track. Got to spend more time getting this sorted. Again much appreciated!! Will get back to this post asap.