With respect, most errors are very easy to fix. It's not that Auran is in error they have just, as was fairly obviously going to happen from reading the forum, tightened up on error detecting.
Many errors were always there, its just that previous versions worked round the problem with a resulting hit on performance.
One reason that TS12 works so well is probably due to not having to fudge round the errors.
Also don't forget that the DLS repair operation is still ongoing so things should get better in time anyway.
What errors are you getting? there is very little that isn't fixable.