Can a team project cache get out of sync causing segments to not keep shared updates?

I have had two team projects recently appear to lose changes made to segments even though versions show the shared updates.  I am using CC Premiere Pro 15.4.1 Build 6 with all my assets for the project shared on CC and during an editing session yesterday I started at 6:15 am then worked through the morning until 11:15.  I then sent it to the media encoder and created my video.  During that time I pushed shared changes 2 times once at 8:38 and 11:10.  I then closed the project and took off for lunch.  Coming back an hour later, I open the project and find the shared versions of my segment are from 3 days earlier.  When I look at the team versions, I can see 8 versions with my two shared versions at 8:38 and 11:10 but when I look at the segment versions, all of them are all the same. 

Another concern is that I don't see any auto save points for this project. 

I understand that the team project is saved locally as cache to keep things fast; however, I am hoping there might be a way to clear the cach and pull the latest shared files to get the 5 hours of editing back.

Anyone know how to do this?  

Is it possible to clear the project cache and restore from the shared versions?  I am hoping that might restore all the changes I made to the segment. 

[Moderator note: moved to best forum.]