Crash in chromium used by libQt6WebEngineCore 6.3.0

[RaulSanchez]

Hello all,
I am developing an application for MacOS which uses accessibility framework to retrieve browser's URL.
Application crashes from time to time. Inspecting the stacktrace I see this:

EXC_BREAKPOINT / EXC_ARM_BREAKPOINT / 0x12470b6d8
Fatal Error: EXC_BREAKPOINT / EXC_ARM_BREAKPOINT / 0x12470b6d8

OS Version: macOS 13.4.1 (22F82)
Report Version: 104

Crashed Thread: 1935090

Application Specific Information:
Fatal Error: EXC_BREAKPOINT / EXC_ARM_BREAKPOINT / 0x1293b30a8

Thread 1935090 Crashed:
0   libQt6WebEngineCore.6.3.0.dylib 0x1293b30a8         base::SequencedTaskRunnerHandle::Get
1   libQt6WebEngineCore.6.3.0.dylib 0x12555b6ac         base::SequencedTaskRunnerHandle::Get
2   libQt6WebEngineCore.6.3.0.dylib 0x125c486a4         mojo::internal::GetTaskRunnerToUseFromUserProvidedTaskRunner
3   libQt6WebEngineCore.6.3.0.dylib 0x125c35b58         mojo::internal::AssociatedInterfacePtrStateBase::Bind
4   libQt6WebEngineCore.6.3.0.dylib 0x124a7c868         mojo::internal::AssociatedInterfacePtrState<T>::Bind
5   libQt6WebEngineCore.6.3.0.dylib 0x124a7c77c         mojo::AssociatedRemote<T>::Bind
6   libQt6WebEngineCore.6.3.0.dylib 0x124a7c6cc         mojo::AssociatedRemote<T>::BindNewEndpointAndPassReceiver
7   libQt6WebEngineCore.6.3.0.dylib 0x124a67034         content::RenderFrameHostImpl::UpdateAccessibilityMode
8   libQt6WebEngineCore.6.3.0.dylib 0x124a7692c         base::internal::Invoker<T>::Run
9   libQt6WebEngineCore.6.3.0.dylib 0x124a4f608         content::RenderFrameHostImpl::ForEachRenderFrameHostImpl
10  libQt6WebEngineCore.6.3.0.dylib 0x124a4f880         content::RenderFrameHostImpl::ForEachRenderFrameHostIncludingSpeculative
11  libQt6WebEngineCore.6.3.0.dylib 0x124badbdc         content::WebContentsImpl::SetAccessibilityMode
12  libQt6WebEngineCore.6.3.0.dylib 0x1246393fc         content::BrowserAccessibilityStateImpl::AddAccessibilityModeFlags
13  libQt6Gui.6.3.0.dylib           0x1091d205c         QAccessible::setActive (qaccessible.cpp:804)
14  libqcocoa.dylib                 0x10a31e9bc         -[QNSView(Accessibility) accessibilityAttributeValue:]
15  AppKit                          0x199b03880         NSAccessibilityGetObjectForAttributeUsingLegacyAPI
16  AppKit                          0x199b02f48         NSAccessibilityGetObjectValueForAttribute
17  AppKit                          0x199b02504         -[NSAccessibilityAttributeAccessorInfo getAttributeValue:forObject:]
18  AppKit                          0x199fd2efc         ___NSAccessibilityEntryPointValueForAttribute_block_invoke.748
19  AppKit                          0x199fcea80         NSAccessibilityPerformEntryPointObject
20  AppKit                          0x199cd8e98         _NSAccessibilityEntryPointValueForAttribute
21  AppKit                          0x199b02294         NSAccessibilityChildren
22  AppKit                          0x199b03a94         NSAccessibilityUnignoredChildren
23  AppKit                          0x199b03880         NSAccessibilityGetObjectForAttributeUsingLegacyAPI
24  AppKit                          0x199b02f48         NSAccessibilityGetObjectValueForAttribute
25  AppKit                          0x199b02504         -[NSAccessibilityAttributeAccessorInfo getAttributeValue:forObject:]
26  AppKit                          0x199fd2efc         ___NSAccessibilityEntryPointValueForAttribute_block_invoke.748
27  AppKit                          0x199fcea80         NSAccessibilityPerformEntryPointObject
28  AppKit                          0x199cd8e98         _NSAccessibilityEntryPointValueForAttribute
29  AppKit                          0x199b02294         NSAccessibilityChildren
30  AppKit                          0x199b03a94         NSAccessibilityUnignoredChildren
31  AppKit                          0x199b03880         NSAccessibilityGetObjectForAttributeUsingLegacyAPI
32  AppKit                          0x199b02f48         NSAccessibilityGetObjectValueForAttribute
33  AppKit                          0x199b02504         -[NSAccessibilityAttributeAccessorInfo getAttributeValue:forObject:]
34  AppKit                          0x199fd2efc         ___NSAccessibilityEntryPointValueForAttribute_block_invoke.748
35  AppKit                          0x199fcea80         NSAccessibilityPerformEntryPointObject
36  AppKit                          0x199cd8e98         _NSAccessibilityEntryPointValueForAttribute
37  AppKit                          0x199b02294         NSAccessibilityChildren
38  AppKit                          0x199dcd7c0         -[NSObject(NSObjectAccessibilityAttributeAccessAdditions) accessibilityArrayAttributeCount:]
39  AppKit                          0x199dce600         -[NSObject(NSAccessibilityInternal) _accessibilityArrayAttributeCount:clientError:]
40  AppKit                          0x199dd1ba8         GetAttributeValueCount

So I see that at some point code goes through qtwebengine, probably the chromium embedded into it.
I have seen that libQt6WebEngineCore 6.3.0 uses v94.0.4606.126
Any idea about the reason of this?
Thanks!