UE5 Editor suddenly crashes during load (at 70%) but only with Rider

The editor loads fine if I run the exe, or if I run from Visual Studio 2022. Again this is a sudden issue, I have been using Rider for weeks with no problems. It didn't happen after pulling new code, and like I said the project is fine outside of Rider, so it's not the usual suspects I'm used to.

 I'm using the `DebugGame – Editor` target, I tried Development and get the same issue. I've tried restarting, clearing Rider caches, even re-installing Rider but still getting the crash. I'm not sure what else to attempt at this point.

Here is the call stack if that's useful:

std::_Atomic_integral::operator++() atomic:1540 
FLevelViewportCommands::RegisterCommands() LevelViewportActions.cpp:128 
TCommands::Register() Commands.h:55 FLevelEditorModule::StartupModule() LevelEditor.cpp:270 FModuleManager::LoadModuleWithFailureReason(FName, EModuleLoadResult &, ELoadModuleFlags) ModuleManager.cpp:650 
FModuleManager::LoadModule(FName, ELoadModuleFlags) ModuleManager.cpp:385 FModuleManager::LoadModuleChecked(FName) ModuleManager.cpp:396 
[Inlined] FModuleManager::LoadModuleChecked(FName) ModuleManager.h:344 IChaosCachingEditorPlugin::StartupModule() ChaosCachingEditorPlugin.cpp:186 FModuleManager::LoadModuleWithFailureReason(FName, EModuleLoadResult &, ELoadModuleFlags) ModuleManager.cpp:650 
FModuleDescriptor::LoadModulesForPhase(Type, const TArray<…> &, TMap<…> &) ModuleDescriptor.cpp:695 FPluginManager::TryLoadModulesForPlugin(const FPlugin &, Type) PluginManager.cpp:2203 FPluginManager::LoadModulesForEnabledPlugins(Type) PluginManager.cpp:2278 
FEngineLoop::LoadStartupModules() LaunchEngineLoop.cpp:4629 
FEngineLoop::PreInitPostStartupScreen(const wchar_t *) LaunchEngineLoop.cpp:3934 [Inlined] FEngineLoop::PreInit(const wchar_t *) LaunchEngineLoop.cpp:4387 
[Inlined] EnginePreInit(const wchar_t *) Launch.cpp:41 GuardedMain(const wchar_t *) Launch.cpp:140 LaunchWindowsStartup(HINSTANCE__ *, HINSTANCE__ *, char *, int, const wchar_t *) LaunchWindows.cpp:233 WinMain(HINSTANCE__ *, HINSTANCE__ *, char *, int) LaunchWindows.cpp:284 
[Inlined] invoke_main() 0x00007ff61677da2a __scrt_common_main_seh() 0x00007ff61677da09 <unknown> 0x00007ffb3881257d <unknown> 0x00007ffb3912aa58



Hello Andrew,

Could you send us your latest crash report after encountering this issue so we could investigate this issue? 

You can send us the report via the Upload Service and let me know the Upload ID. You can find crash reports (both the log and the minidump) under <project_directory>\Saved\Crashes


Hi Kirill, I guess there's technically no crash but execution stops here and resuming doesn't work. The editor log doesn't provide any useful data.


Hello Andrew,

Could you please make a screenshot of the Breakpoints Dialog (Run -> View Breakpoints and Exceptions...) when Rider stops project execution like this?

Do you see any information about breakpoints if you switch to the “Debugger Output (LLDB)” tab and list the breakpoints via br l?


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