[Csnd-dev] alert for the current develop version

i am working on a large project in csoundqt.
since months i am always using the current develop.
now something is broken, coming from this commit, nov 8:
commit 669f50e05310ee13c98bb01b0977672d75f57bd6

i know it is not very helpful that i cannot break it down.
it seems related to some array operations.
i have repeating sounds then, and finally the program hangs.
simple tests run ok but not my .csd.

when i checkout the commit before 
(728c8e4fdc6f1ca30da9577bed651ec79af59057) all is good.