AlekseyL
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Москва, Россия
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"Main Thread Checker" is already enabled and it doesn't help. I guess, somewhere inside NSProgressIndicator realy works secondary thread. That's why, I think, usesThreadedAnimation = NO is helps.
After huge time spended on this issue, wrote on forum... And after that, solved the problem in few minutes.
_progressView.usesThreadedAnimation = NO;
works for me.