Looking at the console was the first thing I tried ;)
No errors anywhere, no obvious reason why it wouldn't be showing up - I can see it exists in the HTML but can't see anything that's acting upon it to make it invisible.
Might just be some plugin I have installed that's messing with it, somehow - adblock seems a likely culprit as the button has "subscribe-button" as its ID and that would seem to be the kind of thing it'd block.
Looking at the console was the first thing I tried ;)
No errors anywhere, no obvious reason why it wouldn't be showing up - I can see it exists in the HTML but can't see anything that's acting upon it to make it invisible.
Might just be some plugin I have installed that's messing with it, somehow - adblock seems a likely culprit as the button has "subscribe-button" as its ID and that would seem to be the kind of thing it'd block.