This used to work, but as of several weeks ago, stopped. I noticed on Photography first but it's not just limited to that.
If I click on
- upvote or downvote,
- upvote comment, or
- flag comment,
nothing happens.
Switching to the mobile theme makes it work, but then I can't tell what site I'm on at a glance, and on Photography, I loose the photo of the week header, and I'm missing other functionality.
FWIW, everything seems fine in Chrome on the same phone.
I don't think it's due to the hotspot being very small. Sometimes, apparently at random (and very rarely), it does work, but I can't replicate by very carefully hitting the same spot. Also, zooming in and very carefully going over the whole button doesn't help.