Hello. I have 2x Sony XF90s a 49" and a 55". Since the most recent automatic update to 7140 they're both intermittently rebooting after being powered on from standby. 

They come on - you see the TV picture or home screen - but then screen goes black and a few seconds later white Sony logo followed by the android animation. 

They both come back on and work 100% normally afterwards.

As I say intermittent on both TVs which is why I think it's to do with the update rather than a hardware issue. Before I do factory resets on them both (which I was hoping to avoid), is anyone else seeing this.

Any suggestions?

Thanks everyone!