Engine Crashes when Open Rive file and Run project in UE Editor

[majidp1]

Using the Rive Plugin in Unreal Engine, the engine crashes when you open the Rive file and Run the editor to view the design in viewport. Here is the crash report from the UE:
Also after the crash happens, and we restart the engine the Rive file is not there anymore.

Reproduction steps:

1. Drag and Drop the .riv file into the content Drawer
   2)Right click on the produced Rive file and click on Spawn Rive Widget Actor
2. Run the editor to see the Rive Menu design
3. Open the Rive file.

UE Crash log:

LoginId:5b4ed9744152e35978d899afba56c5d3
EpicAccountId:bf43f38a81f34439a95c2c8e00a11e36

Assertion failed: Index >= 0 [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\UObjectArray.h] [Line: 943]

UnrealEditor_SlateCore
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LoginId:5b4ed9744152e35978d899afba56c5d3
EpicAccountId:bf43f38a81f34439a95c2c8e00a11e36

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000004e0

UnrealEditor_Rive!SRiveWidget::OnResize() [D:\Unreal Projects\ORPlanner\Plugins\Rive-0.3.6a-gh\Source\Rive\Private\Slate\SRiveWidget.cpp:120]
UnrealEditor_Rive!TBaseSPMethodDelegateInstance<1,SRiveWidget const ,1,void __cdecl(void),FNotThreadSafeNotCheckedDelegateUserPolicy>::Execute() [C:\Program Files\Epic Games\UE_5.3\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:281]
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LoginId:5b4ed9744152e35978d899afba56c5d3
EpicAccountId:bf43f38a81f34439a95c2c8e00a11e36

Assertion failed: Index >= 0 [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\UObjectArray.h] [Line: 943]

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