A game I have been working on is working fine in the editor, but as soon as I run any packaged build of it it crashes with a “Fatal Error”. The problem is the Crash Log doesn’t list any reason for the crash, doesn’t even say anything about errors or closing the program. Any ideas of how I could fix this?
Crash Log
Turns out I do have a little bit more to add, after the game crashed it coppied this to my clipboard
Fatal error!
Unhandled Exception: 0xc06d007e
0x00007ffd60de5b0c KERNELBASE.dll!UnknownFunction
0x00007ff797fdd9b4 MyProject-Win64-DebugGame.exe!__delayLoadHelper2() [D:\a_work\1\s\src\vctools\delayimp\delayhlp.cpp:312]
0x00007ff797ea50be MyProject-Win64-DebugGame.exe!_tailMerge_steam_api64_dll()
0x00007ff79633dfa2 MyProject-Win64-DebugGame.exe!CCallbackUSteamNotificationsSubsystem::cSteamEventsStore,GameOverlayActivated_t,0::CCallbackUSteamNotificationsSubsystem::cSteamEventsStore,GameOverlayActivated_t,0() [C:\Program Files\Epic Games\UE_5.3\Engine\Source\ThirdParty\Steamworks\Steamv153\sdk\public\steam\steam_api_internal.h:154]
0x00007ff79633edb8 MyProject-Win64-DebugGame.exe!USteamNotificationsSubsystem::USteamNotificationsSubsystem() [C:\Users\flami\Documents\Unreal Projects\MyProject\Plugins\AdvancedSteamSessions\Source\AdvancedSteamSessions\Classes\SteamNotificationsSubsystem.h:35]
0x00007ff79633d8a2 MyProject-Win64-DebugGame.exe!InternalConstructor() [C:\Program Files\Epic Games\UE_5.3\Engine\Source\Runtime\CoreUObject\Public\UObject\Class.h:3597]
0x00007ff78db12b0a MyProject-Win64-DebugGame.exe!UClass::CreateDefaultObject()
0x00007ff78ddfb853 MyProject-Win64-DebugGame.exe!UObjectInitialized()
0x00007ff78ddd9130 MyProject-Win64-DebugGame.exe!ProcessNewlyLoadedUObjects()
0x00007ff7945e7b3c MyProject-Win64-DebugGame.exe!FEngineLoop::PreInitPostStartupScreen()
0x00007ff7945e10c8 MyProject-Win64-DebugGame.exe!GuardedMain()
0x00007ff7945e141a MyProject-Win64-DebugGame.exe!GuardedMainWrapper()
0x00007ff7945e42c6 MyProject-Win64-DebugGame.exe!LaunchWindowsStartup()
0x00007ff7945f3ec4 MyProject-Win64-DebugGame.exe!WinMain()
0x00007ff797fe18d6 MyProject-Win64-DebugGame.exe!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
0x00007ffd6282257d KERNEL32.DLL!UnknownFunction
Have you reinstalled/verified Unreal?
And are your GPU drivers up to date?
Best to start there, and then if those are not the case, try other methods.
Tried both, didn’t fix. I have looked for other solutions but I can’t find anyone else with the same crash log/problem so none of it seems to fix the problem.
The next thing I would suggest is to try packaging an empty project and see if you can launch it.
I tried that and it worked, and then I tried it with one of my plugins and it worked. But adding the advanced sessions plugin seems to have crashed. I still need to test if the Advanced Sessions plugin on it’s own crashes the game
Can confirm that Advanced Sessions is what’s causing the crash
Yeah, plugins are tricky.
If they’re not properly maintained, they can cause serious issues because they interfere/interact with core functionality.
I checked to see when it was last updated, and it appears the last time was for UE4 (Unless there’s a UE5 update I’m unaware of?).
That said, yes, it’s most likely incompatible with UE5 or even later versions of UE4.
If you do use plugins, I suggest only using those on the Marketplace, as Epic (and more frankly, buyers) hound the developers to keep them up to date.
The current version of the Advanced Session plugin is on the latest version of UE5
https://vreue4.com/advanced-sessions-binaries
I have fixed it!!
I needed to turn on the “Online Steam Subsystem” and that fixed the issue
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