Unreal Integration error while registering functions

[vacuity_dev]

Hi, loving the plugin. It works perfectly fine on Unreal Engine 5.5 from EGS.

We’re having problems getting it to run on our source UE (AngelScript) though.
The plugin builds fine. When enabled, during loading, it crashes while calling RegisterFunctions() for ChatbotComponent.

We have tried:

• Using older plugin versions (3.5)
• Removing UFUNCTION on as many function definitions as possible
• Altering the loading phase of the plugin

The stack trace displays 0xfffffffff for InArray, with Num=24.

Any help will be appreciated.

[K3]

Hello @vacuity_dev,

Welcome to the Convai Developer Forum!

Could you please share the Crash Logs and Editor logs?

[vacuity_dev]

Here’s the debugger output around the crash:
‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\VirtualProduction\Takes\Binaries\Win64\UnrealEditor-TakesCore.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\VirtualProduction\Takes\Binaries\Win64\UnrealEditor-TakeMovieScene.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\VirtualProduction\Takes\Binaries\Win64\UnrealEditor-TakeTrackRecorders.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\VirtualProduction\Takes\Binaries\Win64\UnrealEditor-TakeRecorder.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\VirtualProduction\Takes\Binaries\Win64\UnrealEditor-CacheTrackRecorder.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\FX\NiagaraSimCaching\Binaries\Win64\UnrealEditor-NiagaraSimCachingEditor.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Binaries\Win64\UnrealEditor-AudioCaptureCore.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Unloaded ‘E:\UE\5.5\Engine\Binaries\Win64\UnrealEditor-AudioCaptureCore.dll’

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Binaries\Win64\UnrealEditor-AudioCaptureCore.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\Marketplace\Convai\Binaries\Win64\UnrealEditor-Convai.dll’. Symbols loaded.

‘UnrealEditor.exe’ (Win32): Unloaded ‘E:\UE\5.5\Engine\Plugins\Marketplace\Convai\Binaries\Win64\UnrealEditor-Convai.dll’

‘UnrealEditor.exe’ (Win32): Loaded ‘E:\UE\5.5\Engine\Plugins\Marketplace\Convai\Binaries\Win64\UnrealEditor-Convai.dll’. Symbols loaded.

Exception thrown at 0x00007FFE61168673 (UnrealEditor-CoreUObject.dll) in UnrealEditor.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.

The crash log and editor logs don’t mention the error at all. I’ll get you the full stack trace soon.

[K3]

It would be great if you could share the logs as a file.

[vacuity_dev]

Sure.
Log:
SmartSpatial.log (119.4 KB)

[K3]

Thank you for the details. We will investigate this issue.

[vacuity_dev]

I wanted to inform you, this issue also occurs with Unreal 5.6 source build, with 3.6.1 release from github. Same message. Here’s some debug info if that helps: