EXC_BAD_ACCESS after upgrading to iOS8 SpriteKit game

Question

SpriteKit game crashes with EXC_BAD_ACCESS after upgrading to iOS8. Happens at random time, for no apparent reason, after playing a while. Exception breakpoint, as well as enabl

Answer 1

So, apparently the problem was in removeFromParent.

After changing:

SKAction *remove = [SKAction removeFromParent];
[self runAction:[SKAction sequence:@[wait, remove]]];

to:

[self runAction:wait completion:^{
    [self removeFromParent];
}];

the error has gone, but another one appeared:

SpriteKit`SKCShapeSprite::getAccumulatedBounds()

Please head to SpriteKit: EXC_BAD_ACCESS SpriteKit`SKCShapeSprite::getAccumulatedBounds() crash for details.

UPDATE: It turned out that I got ahead of myself: error popped up again after several hours. Now I have two kinds of unsolvable issues, and thinking of rewriting the game from the ground up specifically for iOS8.