The only repro we have is within the Power BI app. Console logs: fault 20:40:39.907552+0200 Power BI /Library/Caches/com.apple.xbs/Sources/WebKit_Sim/Source/WebKit/UIProcess/RemoteLayerTree/ios/RemoteScrollingCoordinatorProxyIOS.mm 224: Invalid message dispatched virtual void WebKit::RemoteScrollingCoordinatorProxyIOS::establishLayerTreeScrollingRelations(const WebKit::RemoteLayerTreeHost &) fault 20:40:39.908104+0200 Power BI Received an invalid message 'RemoteLayerTreeDrawingAreaProxy_CommitLayerTree' from the WebContent process. default 20:40:39.908282+0200 Power BI AuxiliaryProcessProxy::terminate: PID=54762 error 20:40:39.909432+0200 Power BI 0x14b0748b0 - [PID=54762] WebProcessProxy::didClose: (web process 54762 crash) Repro steps: - Install the Power BI app from the App Store on an iPad with iPadOS 16.4 beta. - Login with: Username: webkit-repro@erezoneoutlook.onmicrosoft.com Password: PowerBI!2 - Enter split screen (for example - bring the Safari app to the right) - Open the "Test" report that appears on the Home page in the Power BI app - Observe the crash
Adding graouts as CC. Saw you had some major changes in this area: https://github.com/WebKit/WebKit/commit/8f2972ef9f74c7f00d74077697c4028a1121773e
Can you attach the full crash report?
<rdar://problem/105989520>
I couldn't find any crash reports both on the simulator and on device analytics for the content process. I gathered the information from Console. Let me know if I can help by extracting the logs from somewhere else.
This type of error won't generate a crash report.
Can you give the build number that your device is running please? iPadOS 16.4 beta 2 is now available.
The issue no longer reproduces in iPadOS 16.4 beta 2. Closing the bug.