Thanks for your detailed response… found the problem. I needed to render the audio files again (main & mute) , to account for the resized tempo map…
When the audio is rendered, the Render Bounds setting on my setup defaults to ‘Entire Project’ so I guess it makes sense.. adding in the new measure will mean the audio will no longer sync/ match with the project unless you render the audio again.
To insert the measure I simply selected the whole of measure 1.0, right mouse click for the context menu , ‘Insert Empty Space into Selection’.. then I had to ensure all the MIDI tracks start from 1.0 again to account for the new measure (otherwise Magma complains)
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