hi guys,
I had to come back and tell you how I fixed my problem. Maybe it will help someone. long story short it seems to be a jetpack issue.
…more below…
When I deleted the ‘duplicate’ post in my sub-domain (where all my comments were ending up) I saw that the site was hanging trying to load jet-pack.
My sub-domain was using the same username as my main site. The sub-domain wordpress instance was signed on to jetpack. So I signed it out. Which signed me out on my main site too. So I moved all the posts in my subdomain to a different author and re-connected my main site to jetpack.
now all comments made on my “problem” posts are showing up on my main site and not my sub-domain.
hope this helps you jbernard. ??
how safe would it be to be export my comments from my sub domain and import them back to my main site?