Rob,

When you say ...
Quote:

Very weird I can play the song and hear the sound, and stop and play it back at the same location and nothing.


... this behaviour would still hold with a software registration issue because such reminder events as unwanted noises are usually timed (e.g. every 30 secs or 5 mins, etc.) and are not location dependent.

If this was my problem, what I'd do is to solo individual tracks and and listen to each one in its entirety. I'd work through the entire song like this, one track at a time. Hopefully, this would allow me to isolate the problem to a track. Once that's done, I'd look at that track and see what might potentially be causing the issue. I'd then grab a second song that has the same problem and, again, see if I could isolate the problem to an individual track. I'd then compare the tracks from the two songs and look for similarities (in settings, soft synths, etc.) that might shed some light on what's happening.

Regards,
Noel

MY SONGS...
Audiophile BIAB 2025