I've never had this shutdown issue with my three boxes. But within the last few days, the box in my main setup started having this issue. Saturday, Sunday, and Monday morning the box was still on and did not shutdown from the night before. I have no idea why. Especially since my other two boxes are still shutting down properly.
Boxee Box 1, 2 & 3(Boxee+ v1.4.6), PCs(v22.214.171.12496) Boxee TV(v126.96.36.19981)
Server 1: HP MSS WHS (56TB) (NFS/SMB)
Server 2: unRAID1 (32TB) (NFS/SMB)
Server 3: unRAID2 (29TB) (SMB)
Server 4: TiVo Desktop (6TB RAID 5) (SMB)
NAS 1: Intel SS4200-E (4TB RAID 5) (NFS/SMB)
NAS 2: Dlink DNS-321 (1TB RAID 1) (SMB)