Increased AWS .NET SDK crashes with Unity 2020

[jmapsciplay]

We recently switched over to Unity 2020 in our client and are seeing significantly increased crash rates within the AWS .NET SDK. We mostly use Kinesis Firehose calls from the SDK and most of the callstacks for the crashes start in
the AWS4Signer and end up crashing in .NET libraries below that. I have attached the most prominent callstacks we are seeing with these crashes.

We have tried with both AWS .NET SDK version 3.3.660.1 and 3.7.108.0 and both SDKs yield similar results. The callstack below is with 3.7.108.0. The only change was updating from Unity 2018 to Unity 2020 in the case of using the 3.3.660.1 version and we only updated to 3.7.108.0 to validate that the increased crashes were still happening with a newer version.

I am curious if anyone else is seeing similar behavior and/or if devs can shed any light on the issue.

callstacks.txt

[ashishdhingra]

Hi @jmapsciplay,

Good afternoon.

Starting with version 3.5 of the AWS SDK for .NET, projects using Unity 2018.1 or later should target the .NET Standard 2.0 release of the SDK. You can find additional information in the developer guide: Unity support and Migrating your Unity application.

Please try using the .NET Standard 2.0 version of the AWS SDK for .NET (version 3.5 or later).

Thanks,
Ashish

[jmapsciplay]

@ashishdhingra We are targeting .NET Standard 2.0 with the release that used 3.7.108.0 of the AWS .NET SDK.

Thanks,
Jeremy

[jmapsciplay]

@ashishdhingra Any other ideas or help you can offer?

[ashishdhingra]

@jmapsciplay Have you tried using the link.xml file as mentioned at Special considerations for Unity support since it appears that you are using IL2CPP.

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