I'm wondering if anyone else is able to reproduce a bug with Chatter Files (in folders) in Agile Accelerator.  I'm trying to use Salesforce Files Sync in conjunction with Agile Accelerator, so my team can collaborate on documents.  I organize the files in my Sync Folder with sub-folders for each work item.  Then I go to the Chatter tab in Agile Accelerator, add a File from Salesforce, go to the Synced setting, click on one of the folders... and it's a blank screen.  I can use the back-button on my mouse to get out of it, and I've been able to navigate into folders when using Chatter on other objects.  It seems to be isolated to Agile Accelerator.  Thoughts?