Last week we were busy with code examination and tests of new qs functionality with contracts.
API works correctly now. But using quick start functional with contract class data prevent it from correct storing contract state data. As there are many checks and different algotithmic threads the process takes more time that it was previously assumed.
Besides we shouldn't disturb the current process logic. As we have mostly rewritten the contracts functionality this problem should be the last reason why some contracts are executed with discrepancies on different nodes.
Looking forward for next release soon.