Asset Uploader on Linux (UE 5.7) — upload completed but avatar not visible in Avatar Studio

Unreal Engine Questions
1

Hello,

I have the Professional plan and I’m trying to upload a custom MetaHuman avatar using the Convai Asset Uploader. I’m running on Linux with Unreal Engine 5.7 (I know the official requirement is UE 5.5 on Windows — I deliberately tried a workaround).

Plugin versions used:

  • ConvAI plugin: 3.6.9-hotfix-2

  • ConvaiPakManager: 2.3.10

What I did:

  • Cloned the Convai-UnrealEngine-ModdingTool repo and patched it to run on Linux

  • Applied several patches to allow compilation on Linux (removed Win64-only restrictions, fixed LiveCoding dependency, patched thumbnail validation)

  • Used the AssetUploader Editor Utility Widget inside the generated project on kogaion (Linux, UE 5.7)

  • The Output Log showed: Uploaded : 100.0, Uploaded asset, Updated asset

Asset IDs from the upload log:

  • Asset ID: b6ddf0b8-ca6b-42ae-bbdd-279bbac69b1c

  • Avatar ID: 2362e38c-3ee8-4ad5-bd3c-a32b55302f39

The problem: The avatar does not appear anywhere in the Avatar Studio dashboard. The “Upload Your Custom Avatar” section is not visible even though I have the Professional plan.

My suspicion: The Win64 packaging step failed (cross-compiling Win64 from Linux is not possible without MSVC). Only the Linux PAK was packaged and uploaded. Is the Win64 PAK required for the avatar to appear in Avatar Studio? Is there a way to upload just a Linux PAK, or is Win64 mandatory?

Is there any way to recover this upload using the Asset ID / Avatar ID above, or do I need to redo everything on a Windows + UE 5.5 machine?

PS. I can contribute the linux code if is there any interest

Thanks

2

Hello,

Welcome to the Convai Developer Forum!

We will be releasing an update on this soon. Please stay tuned and wait for the upcoming update.