Bug New ECS project - persistent allocation memory leak - intel macbook 2018, macOS 14 - Unity 2022.3.01

Hi,

I'm using an intel Macbook Pro 2018, MacOS 'Sonoma' 14.0 (23A344).

In an attempt to find the cause of the memory leak mentioned below, I've created a new project and set up the following:
- Unity 2022.3.0f1
- Using the URP template
- Imported the basic packages for ECS (UnityPhysics / Entities / Burst / Collections)
- Created a floor and sphere within a subscene

As soon as I add any items to my ECS subscene with colliders/Rigidbodies, entering play mode produces the warning. If there are no items in the sub scene the warning doesn't appear:
'Leak Detected : Persistent allocates 14 individual allocations.
#0 GetStacktrace(int)
#1 DebugStringToFile(DebugStringToFileData const&)
#2 LeakDetection::CheckForLeaks()
#3 CallbackArray::Invoke()
#4 ProfilerCallbackInvoke<CallbackArray, &GlobalCallbacks::domainUnloadComplete>::Invoke(char const*)
#5 MonoManager::CreateAndSetChildDomain()
#6 MonoManager::BeginReloadAssembly(DomainReloadingData&)
#7 MonoManager::ReloadAssembly()
#8 Internal_ADB_Only_ReloadAllUsedAssemblies()
#9 RefreshInternalV2(AssetDatabase::UpdateAssetOptions, ScanFilter const&, InternalRefreshFlagsV2)
#10 StopAssetImportingV2Internal(AssetDatabase::UpdateAssetOptions, InternalRefreshFlagsV2, ScanFilter const*, char const*)
#11 EditorSceneManager::RestoreSceneBackups(dynamic_array<EditorSceneBackup, 0ul>&, EditorSceneManager;PlayModeChange)
#12 PlayerLoopController::EnterPlayMode()
#13 PlayerLoopController::SetIsPlaying(bool)
#14 Application::TickTimer()
#15 -[EditorApplication TickTimer]
#16 __NSFireTimer
#17 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#18 __CFRunLoopDoTimer
#19 __CFRunLoopDoTimers
#20 __CFRunLoopRun
#21 CFRunLoopRunSpecific
#22 RunCurrentEventLoopInMode
#23 ReceiveNextEventCommon
#24 _BlockUntilNextEventMatchingListInModeWithFilter
#25 _DPSNextEvent
#26 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
#27 -[NSApplication run]
#28 NSApplicationMain
#29 EditorMain(int, char const**)
#30 main
#31 start'
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Does anybody have an idea for where I might start trying to fix this. I'm a bit out of my depth here because I'm not sure which file(s) I should be investigating.

Many thanks,
Tom