Summary
I’m reposting this here as nobody was able to answer.
Hi everyone,
My editor instantly freezes as soon as I click on “Download Texture Sources” in MetaHuman Creator under UE 5.8.
Symptoms:
Clicking the button freezes the entire editor instantly (not just the OS “Not Responding” state — the whole editor becomes unresponsive)
CPU usage stays stable at ~80% the entire time
Left it running for a full day with no change — no crash, no error, no recovery
No error is logged, the log simply stops writing after the EOS SDK boot sequence starts
The log before the freeze :
Requesting texture sources… Blocking: false
Downloading source face textures
Downloading source body textures
LogEOSSDK: LogEOS: Updating Platform SDK Config
LogEOSSDK: LogEOS: [Boot] EOSSDK Version 1.19.1.2-53289219 booting at 2026-07-20T13:56:40.772Z
Isolation steps I’ve done:
Tested on the same machine, same network, same account
UE 5.7: Download Texture Sources works correctly (tested on 2 different characters)
UE 5.8: Fails on a project migrated from 5.7, AND on a brand-new project created directly in 5.8, AND with a fresh unmodified MetaHuman character (not just my customized one)
This strongly points to a specific bug introduced in 5.8, likely related to changes in the Texture Sources / DCC export pipeline mentioned in the 5.8 release notes.
System info:
UE 5.8
Windows 10, RTX 3070
What Type of Bug are you experiencing?
Editor
Steps to Reproduce
→ click on “Download Texture Sources” in MetaHuman Creator under UE 5.8.
Expected Result
The download should start
Observed Result
Clicking the button freezes the entire editor instantly (not just the OS “Not Responding” state — the whole editor becomes unresponsive)
CPU usage stays stable at ~80% the entire time
Left it running for a full day with no change — no crash, no error, no recovery
No error is logged, the log simply stops writing after the EOS SDK boot sequence starts
Affects Versions
5.8
Platform(s)
Windows
For crash reports, include your callstack
The log before the freeze :
Requesting texture sources… Blocking: false
Downloading source face textures
Downloading source body textures
LogEOSSDK: LogEOS: Updating Platform SDK Config
LogEOSSDK: LogEOS: [Boot] EOSSDK Version 1.19.1.2-53289219 booting at 2026-07-20T13:56:40.772Z
Additional Notes
Tested on the same machine, same network, same account
UE 5.7: Download Texture Sources works correctly (tested on 2 different characters)
UE 5.8: Fails on a project migrated from 5.7, AND on a brand-new project created directly in 5.8, AND with a fresh unmodified MetaHuman character (not just my customized one)
This strongly points to a specific bug introduced in 5.8, likely related to changes in the Texture Sources / DCC export pipeline mentioned in the 5.8 release notes.
System info:
UE 5.8
Windows 10, RTX 3070