Highlighting random passages

Using the beta, 2.9.0.10 64-bit.
Have the “highlight current line” turned on. I’m also using two monitors, fwiw. When I leave the page to search something in my browser, it randomly highlights entire passages in the same yellow highlighter used by the “highlight current line” feature. I have to select the affected passage and change the highlighter shade to nothing in order to fix it. I can’t figure out what’s triggering it, but it’s happened at least five times today.

Windows 10 64-bit, v1803
Scrivener for Windows is on my second monitor. My main monitor is my Surface Book 2 with all recent updates installed.

Hope that helps!

Since you’re working with the beta, you may get better results posting in the beta forum:.