Hi there !
It seems that when you manually suspend audioContext using its native method: 'suspend()', the Howler state is still 'running'.
Thus when we try to play it again, it doesn't work.
https://jsfiddle.net/ykczmoux/15/
After a while, Howler state will be set to 'suspended'. As so, it will work again. I don't know why.
On iOs, when you unplug headphones, its policy will suspend any audioContext. But here, our Howler state will remain 'running'. Therefore, you cannot play any sound while Howler state is still running.
Regards,