Crash opening a project (in 4.6.1) created in a newer version of the editor (4.7)

This crash apparently occurs when a project either created or converted into 4.7 is opened in 4.6(.1). User quotes include:

"booted up project. instant crash. "
"trying to open a project made in 7.0 in 6.1 "
"Opening a converted 4.7.0 P3 project in 4.6.1. I didn't really expect it to work, and well.... it doesn't [Image Removed] "

Likely related to this issue: https://jira.ol.epicgames.net/browse/UE-8407

ERROR MESSAGE:
Fatal error: [Link Removed] [Line: 54] Ran out of memory allocating 53994222768 bytes with alignment 0

[Not reproduced internally]

1. Create a project in 4.7.
2. Attempt to open that project in the 4.6.1 editor.

<unknown module>! KERNELBASE!RaiseException()
<unknown module>! UE4Editor_Core!FOutputDeviceWindowsError::Serialize()
<unknown module>! UE4Editor_Core!FMsg::Logf__VA()
<unknown module>! UE4Editor_Core!FMallocTBB::OutOfMemory()
<unknown module>! UE4Editor_Core!FMallocTBB::Realloc()
<unknown module>! UE4Editor_Core!TArray<FCustomVersion,FDefaultAllocator>::Empty()
<unknown module>! UE4Editor_Core!operator<<()
<unknown module>! UE4Editor_Core!FCustomVersionContainer::Serialize()
<unknown module>! UE4Editor_CoreUObject!operator<<()
<unknown module>! UE4Editor_AssetRegistry!FPackageReader::OpenPackageFile()
<unknown module>! UE4Editor_AssetRegistry!FAssetDataGatherer::ReadAssetFile()
<unknown module>! UE4Editor_AssetRegistry!FAssetDataGatherer::Run()
<unknown module>! UE4Editor_Core!FRunnableThreadWin::Run()
<unknown module>! UE4Editor_Core!FRunnableThreadWin::GuardedRun()
<unknown module>! kernel32!BaseThreadInitThunk()
<unknown module>! ntdll!RtlUserThreadStart()

UE-88880 - Public Discussion

I am not able to find world outliner how to enable it?

How can i modify the param name in EQS node

When I open UE4 4.24.3 it appears that. Does anyone know how to solve?

I'm testing a vehicle demo for html5..when I packaging and testing it on chromium it won't show the object but a side of the object. What should be the issue?

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

Uploading a Model from Rhino to UE5 - Grey interface - why?

Error UE5 5.0.3

Why doesn't the collision diminish when the collision radius decreases?

Someone help me Not 'm getting put a friendly Ai Ai to fight other enemigas someone can help me I really need it ten already thank who can help me