Perhaps I was lucky last night in the end then. I dipped in for an hour's play around 8.30pm UK time and managed an hour's worth of play - roughly 500ly route plotted, 16 jumps. I had 1 server disconnect and quite a few double scans but there wasn't anything too unpleasant.
I also quite liked a few aspects of the 1.3 implementation - specifically the little yellow arrow on the system map showing which body you have targeted, the ranking percentages and Galnet being available from the cockpit. Not sure about that hideous piece of UI on the system map which allows you to directly select a body as a target though, it seems to keep getting in the way.
Also, have you found that your 2nd and 3rd level scans show the right numbers now? I was getting 2170 and 772 respectively but now see 17436 and 2170 which seems more likely.
Good luck out there commanders, it seems a pity that it's gremlins and not Thargoids we should be fearing out in the void!