Hi guys, the UE 5.7.4. editor keeps crashing as soon as I start the game inside the viewport. I added the facesync and everything to a metahuman. Fails every time with this crash error message: Unhandled Exception: 0xc06d007f KERNELBASE UnrealEditor_Convai!__delayLoadHelper2() [D:\a_work\1\s\src\…

Could you please try the latest version? [image] Releases · Conv-AI/Convai-UnrealEngine-SDK-V4 Contains updated plugin for Convai Unreal Engine. Contribute to Conv-AI/Convai-UnrealEngine-SDK-V4 development by creating an account on GitHub.

Hello, Which version of the Convai Unreal Engine plugin are you using? Could you also please share the full crash log so we can review the issue in more detail?

Hey, thanks for the swift reply. It’s the beta 4 version. The text you saw is the entire crash log.

There isn’t a version specifically called “beta 4.” Could you please share the exact Convai Unreal Engine plugin version you are using? Also, the crash message alone is usually not enough to investigate the issue. Please share the full Unreal Engine log file so we can review the detailed error info…

The exact version number is 4.0.0 Beta 15, the latest plugin version from Fab. Log file I can provide, where shall I send it?

Will do asap ! Thank you, will report back.

So now it doesn’t crash, conversation works BUT mouth of metahuman not moving when speaking although face anim has been applied. The plugin says that character class shall be set to Pawn instead of ConvaiBaseCharacter (says deprecated). And when I apply convai body animation, the body is completely …

Please make sure to follow this video. [Real-Time AI Conversations & Facial Animation for MetaHumans | Convai Unreal Engine Tutorial]

Okay, will do, in the meanwhile found that metahuman zip file. Will watch the video, thanks a lot.

So it works, conversation, face anim. Still the body animation makes a mess out of the avatar. I did it exactly the way it was shown in the video. [Screenshot 2026-05-12 002344]

[image] UE5.7.4 with metahumans Anim Class Broken Questions Hello, Welcome to the Convai Developer Forum! Right click on the Animations folder and click the “Resave All” option.

Editor crashing when testplaying

Integrations Unreal Engine Plugin

K3 May 11, 2026, 10:26pm 13

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Editor crashing when testplaying

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