I have a report with a Bing map where tooltips are enabled. They show up fine in the Desktop version, but when I publish to the service they do not appear. Instead, I see the grey triangle that usually connects to the tooltip box, but the box itself does not appear. See screenshot below in which my mouse is over the green dot but not tooltip is shown:
I'm not sure what could be causing this, as the same report/map worked fine on the service a few weeks ago. Any ideas?