I am using HTML code under a Layer's Properties -> Display to show a maptip on hover that includes a picture.
Previously, when I hovered over, the maptip would show, and let me hover over it and click a link on the bubble. That has stopped for some reason.
I see in Settings -> Options -> Canvas & Legend I can specify the delay before a maptip opens (in ms) but not for how long it should stay open.
Like I said, this is a new problem, so either I changed a setting somewhere accidentally, or a recent update changed a setting.
Using QGIS 3.8.2