I've recently updated to SR10 and found some pretty major bugs (I think).
Objects created in an earlier version and then reloaded/saved in SR10 are "locked" to the sheet. All relevant security and permissions are correctly checked. Confirmed locked in place by opening on QVS install of QV11 SR13
Sheets with Container Objects and objects placed within them fall over on a server reload with no data being loaded. Confirmed the reverese direction working perfectly - created in QV11 saved & reloaded then opened in 12 SR13.