New error introduced on 16th February 2022.
https://logstash.wikimedia.org/goto/a6834c523182f8d036e7b0ea3dcf708b
I'm seeing 2,167 errors a day, so this by our criteria this should hold this week's (if this is a real user-facing error) or more likely next week's train [1]:
at VeDmDocument.ve.dm.Document.getBranchNodeFromOffset URL1:293:946 at VeDmSurface.ve.dm.Surface.setSelection URL1:239:441 at VeDmSurface.ve.dm.Surface.setLinearSelection URL1:237:620 at VeCeSurface.ve.ce.Surface.selectFirstVisibleStartContentOffset URL1:570:98 at VeCeSurface.ve.ce.Surface.focus URL1:505:376 at VeInitMwDesktopArticleTarget.ve.init.mw.DesktopArticleTarget.afterActivate URL1:942:11 at Array.<anonymous> URL1:941:302 at fire URL2:46:934 at Object.fireWith [as resolveWith] URL2:48:135 at URL2:52:124 URL1: https://en.wikipedia.org/w/load.php?lang=en&modules=ext.visualEditor.articleTarget%2Cbase%2Ccore%2CdesktopArticleTarget%2CdesktopTarget%2Cdiffing%2Cicons%2Clanguage%2Cmediawiki%2Cmwalienextension%2Cmwcore%2Cmwextensions%2Cmwformatting%2Cmwgallery%2Cmwimage%2Cmwlanguage%2Cmwlink%2Cmwmeta%2Cmwsave%2Cmwsignature%2Cmwtransclusion%2Csanitize%2Cwelcome%7Cext.visualEditor.core.desktop%2Cutils%7Cext.visualEditor.mwextensions.desktop%7Cext.visualEditor.mwimage.core&skin=vector&version=1nv72 URL2: https://en.wikipedia.org/w/load.php?lang=en&modules=jquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cjquery.ui%7Coojs-ui.styles.icons-editing-advanced&skin=vector&version=1wjpy
The error Error: Invalid start offset: -1 began at the same time. May be unrelated, please split out if so.
at VeDmDocument.ve.Document.selectNodes https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:11:647 at VeDmSurfaceFragment.ve.dm.SurfaceFragment.getLeafNodes https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:189:782 at VeDmSurfaceFragment.ve.dm.SurfaceFragment.getSelectedLeafNodes https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:189:939 at VeDmSurfaceFragment.ve.dm.SurfaceFragment.hasMatchingAncestor https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:190:916 at VeUiMWHeading2FormatTool.ve.ui.FormatTool.onUpdateState https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:825:110 at VeUiPositionedTargetToolbar.OO.EventEmitter.emit <anonymous>:1321:656 at VeUiPositionedTargetToolbar.ve.ui.Toolbar.updateToolState https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core%2CdesktopArticleTarget%2Cmwtransclusion&skin=vector-2022&version=4v2y2:625:182 at later https://www.mediawiki.org/w/load.php?lang=en&modules=oojs-ui-core%2Coojs-ui-widgets%7Coojs-ui.styles.icons-editing-advanced&skin=vector-2022&version=7cfyy:3:240
If that error is the same, the rate of errors increases [2] and the frequency is actually much higher (4240 per day).
[1] https://wikitech.wikimedia.org/wiki/Deployments/Holding_the_train#Issues_that_hold_the_train
[2] https://logstash.wikimedia.org/app/dashboards#/view/AXDBY8Qhh3Uj6x1zCF56?_g=h@9928d52&_a=h@52b5a29