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Frequent saves mean the crashing hasn't been terrible, but now every time I beat the final boss and watch the ending, HLD crashes right before the credits roll (I had to check online to make sure I wasn't missing any actual content). If I reload and choose 'continue game,' I have to beat the boss again - although perhaps this is normal? NG+ is unlocked, though, so it's saved something at least.

I have a Macbook Pro 13", Mac OS X 10.11.5, and the last update I have is the Invincibility Patch.