277486 2024-08-01 06:32:23 -0700 When tapping alternately with two fingers, TouchEvent and PointerEvent don't fire for some touches. 2024-08-08 06:33:13 -0700 1 1 1 Unclassified WebKit UI Events Safari 17 iPhone / iPad iOS 17 NEW InRadar P2 Normal --- 1 ayagawap webkit-unassigned a_protyasha webkit-bug-importer oldest_to_newest 2050074 0 472032 ayagawap 2024-08-01 06:32:23 -0700 Created attachment 472032 A circle is drawn at the touched location. A green circle is drawn for PointerEvent, a red circle for TouchEvent. When tapping with two fingers alternating between each other, some TouchEvents and PointerEvents don't fire. This doesn't seem to happen if you tap slowly, but if you tap quickly in succession, it happens. Interestingly, this doesn't happen if one finger is already over the element. Can I suppress this with code? Or should I wait for you guys to do something? - Test Code : https://github.com/AXT-AyaKoto/web-playground/blob/main/multiTouch/index.html (or Attachment "touch-test.html") - GitHub Pages : https://axt-ayakoto.github.io/web-playground/multiTouch/ - Test Movie : https://youtu.be/Du2mdsjZpg4 2051389 1 webkit-bug-importer 2024-08-08 06:33:13 -0700 <rdar://problem/133457579> 472032 2024-08-01 06:32:23 -0700 2024-08-01 06:32:23 -0700 A circle is drawn at the touched location. 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