It looks like there's a need to change the length of the streams that are built. I see in eae logs:
INFO  com.jivesoftware.eae.service.impl.RebuildManagerImpl - End of rebuild because we've passed the 180 day limit for content
What I'm doing now and looks promising:
1) I've change the property in the eae json. There's a property that I changed from 180 to 730. I can probably do 365 after testing.
"streams-default-period-days" : 730,
2) Removed current eae var/data
3. restart EAE.
It's currently building and I have a few more items in my profile than before.