Steps to reproduce: Enable: turn on gfx.webrender.enabled turn on gfx.webrender.blob-images turn on image.mem.shared turn on layers.acceleration.force-enabled 1. Navigate to https://www.pandasecurity.com/mediacenter/security/ugly-mail-know-emails-tracked/ Actual results: Graphic of a woman using a laptop appears behind the logo and navbar of the page. Expected results: Image should appear behind "Ugly Mail: How to know if your emails are being tracked", not behind the navigation. See screenshot for good vs bad.

I see this on Windows as well.

WFM. I had to maximize Nightly to see the same "bad" result. It got also drawn on chrome. mozregression --find-fix --bad 2018-01-07 --good 2018-01-10 --pref layers.acceleration.force-enabled:true gfx.webrender.enabled:true gfx.webrender.blob-images:true image.mem.shared:true layout.display-list.retain:false startup.homepage_welcome_url:"https://www.pandasecurity.com/mediacenter/security/ugly-mail-know-emails-tracked/" > 5:26.11 INFO: First good revision: 4248602674ff589f368a4b868fa4743a033640e4 > 5:26.11 INFO: Last bad revision: 05fed903f40f05fd923ba2137696ecc1fa0bafe6 > 5:26.11 INFO: Pushlog: > https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=05fed903f40f05fd923ba2137696ecc1fa0bafe6&tochange=4248602674ff589f368a4b868fa4743a033640e4 > > 5:28.37 INFO: ************* Switching to autoland by process of elimination (no branch detected in commit message) > 5:28.37 INFO: Getting autoland builds between a66b031b9f6bb1b259be74ea80802229a6d7a187 and 4248602674ff589f368a4b868fa4743a033640e4 > 5:28.88 ERROR: The url u'https://hg.mozilla.org/integration/autoland/json-pushes?fromchange=4248602674ff589f368a4b868fa4743a033640e4&tochange=a66b031b9f6bb1b259be74ea80802229a6d7a187' contains no pushlog. Maybe use another range ? mozregression --find-fix --repo autoland --bad a66b031b9f6b --good afb1b6f44c25 --pref layers.acceleration.force-enabled:true gfx.webrender.enabled:true gfx.webrender.blob-images:true image.mem.shared:true layout.display-list.retain:false startup.homepage_welcome_url:"https://www.pandasecurity.com/mediacenter/security/ugly-mail-know-emails-tracked/" > 4:19.21 INFO: First good revision: 8ccb0e9d9bbeeed7d7e4474849debd7d21b65971 > 4:19.21 INFO: Last bad revision: c174ef283f5561aa3cf24b1d014b5f62dcd5ccd4 > 4:19.21 INFO: Pushlog: > https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=c174ef283f5561aa3cf24b1d014b5f62dcd5ccd4&tochange=8ccb0e9d9bbeeed7d7e4474849debd7d21b65971 Fixed by: > da9b75fc0866 Kartikaya Gupta — Bug 1426116 - Update webrender to commit a422f907be948b92bf5c7003a01f7744391a795e. r=jrmuizel

(In reply to Asif Youssuff from comment #0) Can you confirm that this got fixed?

Jan, I can confirm that this is fixed for me in Nightly.

(In reply to Jan Andre Ikenmeyer [:darkspirit] from comment #2) > Fixed by: > > Kartikaya Gupta — Bug 1426116 - Update webrender to commit a422f907be948b92bf5c7003a01f7744391a795e. r=jrmuizel Linux x64 opt > WR @ 7340ae7ea75af331392c6fa489e2e562b25f2372 > https://treeherder.mozilla.org/#/jobs?repo=try&revision=8e418f825b7168ab6eeeda0f675abdc0cf336e84 bad > WR @ 3db4c461b2125bbd995ef4c370d006042f66e3de > https://treeherder.mozilla.org/#/jobs?repo=try&revision=159021ac746251c647ff249c20c879aa978ec78c bad > WR @ 3db4c461b2125bbd995ef4c370d006042f66e3de > https://treeherder.mozilla.org/#/jobs?repo=try&revision=d6ab230bfe667079ecded0cfb4e7c3ccd99c1dd6 bad > WR @ 3c71e4c0944c1c04d7a21169fe24895dfa5d3d41 > https://treeherder.mozilla.org/#/jobs?repo=try&revision=e4a64d2fba6ee70fd9e387626862b80ae032831d good Fix range: https://github.com/servo/webrender/compare/3db4c461b2125bbd995ef4c370d006042f66e3de...3c71e4c0944c1c04d7a21169fe24895dfa5d3d41 Thank you all for your work! <3