Steven -- Some of my artifacts are opaque, others are transluscent. Not sure what causes which to happen. It's worth noting that I've been seeing this happen fairly often in Safari for months now (the colored blotches). The behavior is actually remarkably similar in terms of how it acts to the behavior described in the [blog post](https://mozillagfx.wordpress.com/2020/02/18/challenge-snitch-on-the-glitch-help-the-graphics-team-track-down-an-interesting-webrender-bug/) mentioned in the latest newsletter, even though that bug is supposedly specific to Windows. But the behavior of boxes that seem to randomly appear when rendering that clear up on scrolling or mousing over elements is exactly what happens here (except with your patch, where they don't refresh). So, that's curious. Anyway.
Bug 1576767 Comment 196 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Steven -- Some of my artifacts are opaque, others are translucent. Not sure what causes which to happen. But having been running the build for a while now, it's not just chrome popups. I'm seeing this in page content as well. It's worth noting that I've been seeing this happen fairly often in Safari for months now (the colored blotches). The behavior is actually remarkably similar in terms of how it acts to the behavior described in the [blog post](https://mozillagfx.wordpress.com/2020/02/18/challenge-snitch-on-the-glitch-help-the-graphics-team-track-down-an-interesting-webrender-bug/) mentioned in the latest newsletter, even though that bug is supposedly specific to Windows. But the behavior of boxes that seem to randomly appear when rendering that clear up on scrolling or mousing over elements is exactly what happens here (except with your patch, where they don't refresh). So, that's curious. Anyway.