Hello David,
Thank you for updates. I believe that I have adequate experience with the appearing patterns of these posts in the 3 categories of lists talked about so far by which I would like to share these points with you.
- There was never a problem in the Recent Activity.
- The problem is with Related Content which I'm afraid is not meant for a post to appear in other spaces, it is equally meant for the very space where it was published.
- To appear in Top liked list there is no pre-requisite like it should be one-month old. My senses say the problem is there too, because my post under discussion has already attained the entitlement for this.
Regards
KJogeswaraRao