We recently upgraded from TFS 2012 to TFS 2015, and have set up several build definitions using the vNext interface. Our build definitions are extremely simple, they consist of a single "Command Line" task, which performs all of our necessary work.
The builds execute properly when using a Gated Check-in, or when queuing manually, but our Scheduled (nightly at 6pm) builds do not execute as expected.
I have attempted granting permissions to the security user/groups that I believe are necessary to properly queue the build to no avail.
So, why is our TFS 2015 scheduled build not running?