This happens relatively often during gameplay. I have not found a way to reliably reproduce it.
We cleaned up the log to narrow down the issue. It does seem to be caused by a Convai plugin call stack.
Thanks 
I think this may be related to a large audio stream. If the model’s response is very long, the character will start talking but then the crash occurs. In the log, it looks like the full response is very long.
This is a persistent issue with Convai SDK. We usually see the voice get half way through a long response before the crash.
Does not occur in editor. Only in packaged game
Hello @Nathan_Weatherford,
Thank you for sharing the details.
I’ve reported this to our Unreal Engine team, they’ll review the issue and get back to you as soon as possible.
Additionally, I noticed your API Key was included in the logs, so I’ve removed the logs for your security. We strongly recommend that you regenerate your API Key via your account on convai.com and update it in your project to ensure the security of your integration.
Appreciate your understanding!
Hello @Nathan_Weatherford,
We’ve just released version 3.5.2, which includes important fixes.
Please try the following steps to update and test:
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Download the ZIP file that matches your Unreal Engine version from our latest release:
Release Convai Unreal Engine SDK Version 3.5.2 · Conv-AI/Convai-UnrealEngine-SDK · GitHub -
Inside your Unreal project directory, create a folder called Plugins (if it doesn’t already exist).
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Move the Convai folder from the downloaded ZIP into the Plugins folder.
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Open your project.
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Don’t forget to add your API key in the Project Settings under Convai.
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