Yea, that doesn't work. It used to turn off the box automatically within a few minutes if it detected that you've turned off your TV, regardless of what the "Auto Power Savings" setting was set to.
These last few updates were obviously not tested for long, if at all. If they had of been then someone would of noticed that auto-off no longer works correctly and that the signal strength and quality for all freeview channels is incorrectly reported as 0%.
Hopefully you should be seeing less issues with the box now. Can you tell us if you're still getting signed out at all? if you are when does this happen - when waking the box up, powering it on, mid-use or just randomly?
I installed the 9.3.3 build 4109-16 update today and now my freeview smart box (4500SK) powers off correctly after about 3 minutes, so thanks for fixing that. But the signal strength for all freeview channels is still incorrectly reported as 0%. And pressing "next channel" or "previous channel" from the secret tuner screen (home x4, up, right, down, up, left, right) still doesn't work. Were these bugs reported to the correct team?