[waddlesplash]

Not sure what you mean when you say "common threading issues"; the entire point of the Be design was to force all threads to use message-based communication instead of shared memory for virtually all uses, and mandatory locking otherwise. It's extremely effective.

[pjmlp]

It was quite common to see BeOS apps crashing due to not handling the threads communication properly.

Having the whole OS being so multithreading heavy was a novelty for the large majority of developers and quite easy to make mistakes.