A little more info...
In low winds everything seems to be ok. But when it's high winds the ball doesn't travel anywhere near the distance it is meant to. Now, I'm told that if you have, say 200 yardshot with a 20mph headwind, you should add another 10 yards (1yd for every 2mph). So, that would make 210yds. I would therefore hit my 3i which goes 210. The ball travels 180. And downwind, with full bs, it doesn't carry anywhere near what it did do before the maintenance.
I will see about clearing the cache, but I've never done it before, either after maintenance. an update or after changing my clubs/balls and it's never been a problem.
Once I have better details I will send a bug report, but for now I'd be grateful if you would pass on the above info.