why does a composition created in an after-effects (2017) project not show up as a choice in same project when importing into premiere pro

I have created several compositions using Adobe After-Effects CC2017 and successfully imported it into a Premiere Pro CC2017 project and also successfully followed the reverse path, replacing a clip in PP with an AE composition but now I have a problem with a mismatch between a comp created in AE versus what shows up in PP.

In this case, i made of copy of an original After-Effects project that I had created: I was using this as a model for creating a new version of that comp.

I gave this AE project copy a new file name.

I also then gave the composition in this AE project copy a new name.

Completely edited this model project; previewed it in AE; works perfectly.

But when I attempt to now import this new AE project composition into Premier Pro as next step in that PP project, using the import function via the media browser, when I now open this revised AE project in the Media Browser window, the new comp in it does not show up as an option for import.

What does show up is the previous composition that was in the original AE project but when I open this AE project in AE itself, the correct, edited composition shows up. It appears that there is an underlying cross-link mismatch somewhere within PP that is mistakenly tying the wrong content in an AE project to another AE project.

So why does a composition created in an after-effects project not then show up correctly within the same AE project as an option to be loaded when importing it into premiere pro?

I have tried clearing all cache and memory. I have unclicked all XMP data options. I am mystified why a comp in an AE project does not show up when opened in PP.

What am I doing wrong here?