Created attachment 465317 [details] Screenshot It looks like tiles are getting jumbled around when rendering cnn.com (see attachment). Unfortunately I do not have a reliable reproducer, but I've seen it a few times recently and I believe this never happened prior to 2.39.90.
Created attachment 465326 [details] Another screenshot Another screenshot, this time with only the Mapbox widget broken
This appears to be fixed on main, and only broken in the 2.40 stable branch.
(In reply to Michael Catanzaro from comment #2) > This appears to be fixed on main, and only broken in the 2.40 stable branch. Actually I'm not confident about this. It's much harder to reproduce in my development MiniBrowser than it is in Ephy Tech Preview so that might just have been luck.
Ah, I've found the bug appears to be related to window size. With larger window size, I can reproduce with MiniBrowser using 2.40.0. Can't reproduce using main.
I cannot reproduce this on a 2.40.x build from the tip of the release branch, but this is using GTK3. I'm making a GTK4 build to check, but there is some little chance that it's fixed by one of the patches that have been backported 🤔️
(In reply to Adrian Perez from comment #5) > I cannot reproduce this on a 2.40.x build from the tip of the release > branch, but this is using GTK3. I'm making a GTK4 build to check, but > there is some little chance that it's fixed by one of the patches that > have been backported 🤔️ I cannot reproduce it either with a GTK4 build of the current tip of the 2.40.x release branch (commit 6dcdac4b3d5a). I've tried changing the MiniBrowser window size a few times, but even maximized on a 1920x1080 monitor (no HiDPI, @1x scale) there are no glitches. Michael, what size exactly is the window when you see glitches? Or, alternatively, could you check a build with the commit mentioned above?
Created attachment 465646 [details] Another screenshot Here is a screenshot taken with webkitglib/2.40 (commit 4524c8a9e1d4ae627ea2279ffed0ff05f806adf0) showing the bug. Definitely not fixed on the stable branch.
Anyway, it's impossible to be certain because the bug does not occur reliably, but I'm once again convinced myself that this is fixed in trunk. I will attempt to bisect this, although there's a high chance of failure here as there's a lot of luck involved.
(In reply to Adrian Perez from comment #6) > Michael, what size exactly is the window when you see glitches? I dunno. MiniBrowser does not remember its window size. I've just been resizing it each time I try to reproduce this bug, so the size will be different each time.
(In reply to Michael Catanzaro from comment #9) > (In reply to Adrian Perez from comment #6) > > Michael, what size exactly is the window when you see glitches? > > I dunno. MiniBrowser does not remember its window size. I've just been > resizing it each time I try to reproduce this bug, so the size will be > different each time. Okay, so we are doing basically the same, and from your screenshot it doesn't look like you have a HiDPI screen either. Maybe it's one of these issues that, by chance, one person has more ease reproducing than others—too bad we don't have a good reproducer :\
Created attachment 465681 [details] Yet another screenshot Oooh, I found another affected website: https://www.riverfronttimes.com/news/st-louis-to-extend-controversial-parking-management-contract-39741060 (still intend to attempt to bisect this)
(In reply to Michael Catanzaro from comment #11) > (still intend to attempt to bisect this) I'm not going to succeed. It's too hard to reproduce.
OK, I hit this today on reddit.com using 2.41.1, so I was wrong: it's not a stable branch bug after all. I still have not been able to reproduce on cnn.com but no question it's the same bug.
Something changed and now this bug is happening drastically more often with 2.41.2 on reddit.com. It's so severe that I'll probably downgrade the GNOME runtime back to 2.41.1, which was also affected but much less often.
On the other hand, I suspect I will be more productive if I cannot use reddit. Hmmm. ;)
src.fedoraproject.org is now broken as well.
OK so strangely enough, the rendering errors on reddit.com are occurring more commonly due to bug #255488. I know it seems weird but they are definitely related. To reduce bugzilla confusion, let's handle the 2.41.2 regressions in bug #255488 and keep this bug focused on the original regression from 2.39.90.
OK, with bug #255488 resolved as something different: I haven't seen the original problem here with cnn.com since upgrading to 2.41.2. I think it's probably fixed. Shame we don't know when it got fixed to do a backport for 2.40.