Logic Pro 9 Create take folders bug since 9.1.4

Logic Pro 9.1.4 and beyond all do this same 'bug'. I have to keep rolling back to 9.1.3 to avoid this issue: Any clarification or fixes most welcome!

I frequently set my project settings to 'create take folders' to record multiple takes in a loop.
Previously (all versions of logic 7, 8, and up to 9.1.3 ) I could set my locators into loop, and keep playing in midi, again and again until I stop the recording. I would NOT hear the previous take, when trying to play in the next loop/recording. It would automatically mute the last take.
Now since 9.1.4 onwards I hear the previous take whilst attempting to play in my next take, hearing a doubling of sounds, (previous take + current recording) which is most off putting.

I have two computers, an imac on 10.6.8 and a macbook pro on 10.6.8
I have tried opening in 16-bit and 32-bit on both computers. Both do exactly the same thing from 9.1.4 onwards...ie playing the previous take whilst simultaneously trying to record another.

When I roll back to 9.1.3 problem fixed!
I've googled everywhere for info on this but nothing. Anyone can help?
ps does not happen when trying to record audio, just midi/instrument tracks