Cursor hovering function gone in safari
Earlier, when using my macbook pro and the standard trackpad to move the cursor around, the cursor has interacted with the content on the web pages without needing an actual click (say moving the cursor over a facebook notification and the notification goes blue and you get some options to click on to the left, or when moving the cursor over a playing youtube video the scrubbing bar (?) at the bottom of the viewport shows up, or when hoovering/moving the cursor over the scrubbing bar it previews thumbnails from the video). That function has suddenly gone, and it relates to all web pages in Safari (other browsers work as normal).
In Youtube specifically, when playing a video in standard view or cinema view, the cursor almost always disappears completely no matter where I point it on the screen, and requirers a lot movement to come back to the screen.
MacBook Pro 15", macOS 10.14