Try covering the hole on the bottom then try to hit it and see if that unclogs it

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i had the same issue with these, pop the mouthpiece off and then put it back on with one corner not snapped so it’s crooked and that always worked

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Happened to mine just like this too. It stopped hitting and would just blink when it was like not even half gone. I left it alone a while, weeks, and got desperate one time so I started hitting it against the edge of a table which seemed to be the only thing that worked:)

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