pthreads has detected an attempt to join with an unstarted about pthreads

[krakjoe]

__prepare has been removed and is no longer executed.
I too have noticed the strange dimension behaviour, you should be able to work around it with array pop/push/merge or the like - it's caused by the way we are storing input/output, the problem should go away before release time.
The Worker/Stacking API has been advanced somewhat, it's uncommitted but something to look forward too - I have introduced a Stackable object which is intended as a base for "Work", removing the limitation of needing to stack the same type of object as the worker itself, but retaining the ability for Stackables to read/write the Worker's context ...
I'll be making a commit in the next few days probably and this will affect this behaviour directly, at which time I'll close this bug, in the mean time, try with array manipulation functions rather than operators and see how that does.

[joxoo]

I comment out the __prepera method in current version.
I testet it with array pop/push/merge and it doesn't works also

[krakjoe]

Try latest commits should be fixed ...