Yeah apparently now my LED isn't coming on at all. I'm inclined to think it's defective. I'll have to return and exchange it which is annoying since I already attached the glass screen protector to it and everything.
There's a setting under Sound/Notification LED for "downloaded apps". If you're giving a third-party app LED control, make sure you leave that turned on. I turned it off and all my Light Flow notifications unsurprisingly stopped working.
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