So just ran through this real quick.
troubleshoot 1:
closed fusion
moved everything in M to a zip (same as deleting it)
moved the folder of old posts to a project folder (out of assets)
reopened fusion
still not reflecting only whats in the CAMposts folder. The post config drop down includes even the files moved out of the assets.
troubleshoot 2:
deleted the cache from "M" again
deleted the folder of old posts i had moved
the two remaining posts in the assets folder disappeared for some odd reason (wtf)
I reopen fusion
cache is populated with no cam posts
no cam posts in drop down post config (it doesn't like that)
troubleshoot 3:
I reupload only the two files to the CAMposts assets folder
delete cache
reopen fusion
cache is populated with the two cam posts
two posts are shown in drop down
Seems to be that there was some syncing issues. It also looks like fusion fishes for anything with the cps extension through all the project folders. That kind of defeats the purpose of having an assets folder though. I'll keep an eye out as we get more posts up. Most of the team has left for the day so I'm not going to be able to see if things updated correctly for everyone until tomorrow.