ProRes render option UE4.25.1

Hello there,
I’m trying to enable the built-in AppleProResMedia plugin but each time I restart my project I the engine crashes.
I am running on windows 10 with QuickTime installed.

Here’s the stack trace I get with debug symbols enabled.


Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000008

UE4Editor_WmfMedia!WmfMediaCodecManager::AddCodec() [D:\Build\++UE4+Licensee\Sync\Engine\Plugins\Media\WmfMedia\Source\WmfMedia\Private\WmfMediaCodec\WmfMediaCodecManager.cpp:56]
UE4Editor_AppleProResMedia!FAppleProResMediaModule::StartupModule() [D:\Build\++UE4+Licensee\Sync\Engine\Plugins\Media\AppleProResMedia\Source\AppleProResMedia\Private\AppleProResMediaModule.cpp:59]
UE4Editor_Core!FModuleManager::LoadModuleWithFailureReason() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Modules\ModuleManager.cpp:519]
UE4Editor_Projects!FModuleDescriptor::LoadModulesForPhase() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Projects\Private\ModuleDescriptor.cpp:561]
UE4Editor_Projects!TryLoadModulesForPlugin() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Projects\Private\PluginManager.cpp:1185]
UE4Editor_Projects!FPluginManager::LoadModulesForEnabledPlugins() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Projects\Private\PluginManager.cpp:1250]
UE4Editor!FEngineLoop::Init() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4022]
UE4Editor_UnrealEd!EditorInit() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdGlobals.cpp:93]
UE4Editor!GuardedMain() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:149]
UE4Editor!GuardedMainWrapper() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
UE4Editor!WinMain() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

Any ideas?

This is still happening in 5.0.3

Same exact error and causing crashes when a render has finished. A bunch of frames are in the folder and it’s trying to compile them into a single clip, that’s when this error happens