(...in internal automation, that is) I cannot reproduce at all, locally :(
From failure output on the bots, it looks like it's entirely timing-dependent. Not too surprising that if the system is under extreme load, the pan gesture recognizer's internal timers might end up never firing by the time the touchend is dispatched...
rdar://78840792
Pull request: https://github.com/WebKit/WebKit/pull/2913
Committed 253019@main (22b3fdb20cbe): <https://commits.webkit.org/253019@main> Reviewed commits have been landed. Closing PR #2913 and removing active labels.